diff --git a/dist/popnhax/popnhax.xml b/dist/popnhax/popnhax.xml
index a0baebf..cdd49d5 100644
--- a/dist/popnhax/popnhax.xml
+++ b/dist/popnhax/popnhax.xml
@@ -131,7 +131,7 @@
                 THREAD_PRIORITY_TIME_CRITICAL  15                             -->
     <enhanced_polling_priority __type="s8">1</enhanced_polling_priority>
 
-  <!-- Song db patches -->
+  <!-- Song db patches (requires patch_db) -->
     <!-- Auto select patch file from data_mods folder based on music limit, or datecode otherwise (will detect datecode from ea3-config or force_datecode option) -->
     <patch_xml_auto __type="bool">1</patch_xml_auto>
     <!-- Manually set XML file containing patches (requires patch_xml_auto to be disabled) -->
@@ -143,11 +143,13 @@
     <!-- Do not perform music limit checks for patch_xml_auto (not recommended) -->
     <ignore_music_limit __type="bool">0</ignore_music_limit>
 
-  <!-- Custom category options -->
-    <!-- minimum songid for a song to be seen as "custom" -->
-    <custom_categ_min_songid __type="u16">4000</custom_categ_min_songid>
-    <!-- maximum songid for a song to be seen as "custom" (0 = no limit, not recommended since "random" category will use fake song ids in the 65400+ range) -->
-    <custom_categ_max_songid __type="u16">65400</custom_categ_max_songid>
+  <!-- Custom category options (requires patch_db) -->
+    <!-- Also exclude omnimix (song id < 3000) tracks from version/level (requires custom_exclude_from_level or custom_exclude_from_version) -->
+    <exclude_omni __type="bool">0</exclude_omni>
+    <!-- New chart added to existing song moves the song to custom folder -->
+    <partial_entries __type="bool">0</partial_entries>
+    <!-- Minimum songid for a song to be seen as "custom" (e.g. use 4000 for real customs only) -->
+    <custom_categ_min_songid __type="u16">0</custom_categ_min_songid>
     <!-- Category title for customs -->
     <custom_category_title __type="str">Customs</custom_category_title>
     <!-- Format used for category title (in BM2DXFontScript format, refer to BM2DXFontScript.md in popnhax_tools repo)  -->
diff --git a/popnhax/config.h b/popnhax/config.h
index dfd9e9d..0014780 100644
--- a/popnhax/config.h
+++ b/popnhax/config.h
@@ -17,7 +17,6 @@ struct popnhax_config {
     bool score_challenge;
     uint8_t custom_categ;
     uint16_t custom_categ_min_songid;
-    uint16_t custom_categ_max_songid;
     bool custom_exclude_from_version;
     bool custom_exclude_from_level;
     bool force_hd_timing;
@@ -64,6 +63,8 @@ struct popnhax_config {
     char custom_category_format[64];
     char custom_track_title_format[64];
     char custom_track_title_format2[64];
+    bool exclude_omni;
+    bool partial_entries;
 };
 
 #endif
diff --git a/popnhax/custom_categs.cc b/popnhax/custom_categs.cc
index 8f84226..d508588 100644
--- a/popnhax/custom_categs.cc
+++ b/popnhax/custom_categs.cc
@@ -36,12 +36,11 @@ char *g_current_friendid;
 uint32_t g_current_songid;
 
 bst_t *g_customs_bst = NULL;
+bool g_exclude_omni = false;
 
 void (*add_song_in_list)();
 
 bool g_subcategmode = false;
-uint32_t g_min_id = 4000;
-uint32_t g_max_id = 0;
 
 const char *g_categicon;
 const char *g_categformat;
@@ -62,8 +61,12 @@ uint32_t favorites_struct_addr = (uint32_t)&favorites_struct;
 
 bool is_a_custom(uint32_t songid)
 {
-	return (bst_search(g_customs_bst, songid) != NULL);
-//	return (songid >= g_min_id && (g_max_id==0 || g_max_id >= songid));
+    return (bst_search(g_customs_bst, songid) != NULL);
+}
+
+bool is_excluded_from_level(uint32_t songid)
+{
+    return ( is_a_custom(songid) && ( g_exclude_omni || songid >= 3000 ) );
 }
 
 void add_song_to_favorites()
@@ -769,7 +772,7 @@ static bool patch_favorite_categ(const char *game_dll_fn) {
     return true;
 }
 
-static bool patch_custom_categ(const char *game_dll_fn) {
+static bool patch_custom_categ(const char *game_dll_fn, uint16_t min_id) {
 
     DWORD dllSize = 0;
     char *data = getDllData(game_dll_fn, &dllSize);
@@ -914,22 +917,21 @@ static bool patch_custom_categ(const char *game_dll_fn) {
 
 char formatted_title[128];
 sprintf(formatted_title, g_categformat, g_categname);
-    LOG("popnhax: custom %s \"%s\" injected (for songids ", g_subcategmode? "subcategories":"category", formatted_title);
-    if (g_max_id)
-        LOG("between %d and %d (incl.))\n", g_min_id, g_max_id);
-    else
-        LOG("%d and up)\n", g_min_id);
+    LOG("popnhax: custom %s \"%s\" injected", g_subcategmode? "subcategories":"category", formatted_title);
+    if (min_id)
+        LOG(" (for songids >= %d)", min_id);
+    LOG("\n");
 
     return true;
 }
 
 void init_subcategories() {
-        g_subcategmode = true;
-        g_subcateg_count = 0;
-        subcategories = (subcategory_s*)realloc(subcategories, sizeof(subcategory_s)*(1));
-        subcategories[0].name = strdup("ALL SONGS");
-        subcategories[0].songlist = NULL;
-        subcategories[0].size = 0;
+    g_subcategmode = true;
+    g_subcateg_count = 0;
+    subcategories = (subcategory_s*)realloc(subcategories, sizeof(subcategory_s)*(1));
+    subcategories[0].name = strdup("ALL SONGS");
+    subcategories[0].songlist = NULL;
+    subcategories[0].size = 0;
 }
 
 static void print_databases() {
@@ -951,7 +953,7 @@ void hook_after_getlevel()
     __asm("push ecx\n");
     __asm("push edx\n");
     __asm("push ebx\n");
-    __asm("call %P0" : : "i"(is_a_custom));
+    __asm("call %P0" : : "i"(is_excluded_from_level));
     __asm("test eax, eax\n");
     __asm("pop ebx\n");
     __asm("pop edx\n");
@@ -992,8 +994,6 @@ bool patch_exclude(const char *game_dll_fn)
 
 bool patch_custom_categs(const char *dllFilename, struct popnhax_config *config)
 {
-    g_min_id = config->custom_categ_min_songid;
-    //g_max_id = config->custom_categ_max_songid; //handled during injection already
     uint8_t mode = config->custom_categ;
 
     char icon_path[64];
@@ -1022,7 +1022,7 @@ bool patch_custom_categs(const char *dllFilename, struct popnhax_config *config)
     else
         g_categformat = "%s";
 
-    if (!patch_custom_categ(dllFilename))
+    if (!patch_custom_categ(dllFilename, config->custom_categ_min_songid))
         return false;
 
     if (mode == 2)
@@ -1040,8 +1040,12 @@ bool patch_custom_categs(const char *dllFilename, struct popnhax_config *config)
 
     if (config->custom_exclude_from_version)
         LOG("popnhax: Customs excluded from version folders\n"); //musichax_core_init took care of it
+
     if (config->custom_exclude_from_level)
+    {
+        g_exclude_omni = config->exclude_omni;
         patch_exclude(dllFilename);
+    }
 
     return true;
 }
diff --git a/popnhax/dllmain.cc b/popnhax/dllmain.cc
index 986798f..44825a5 100644
--- a/popnhax/dllmain.cc
+++ b/popnhax/dllmain.cc
@@ -188,10 +188,12 @@ PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_S8, struct popnhax_config, base_offset,
                  "/popnhax/base_offset")
 PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_U8, struct popnhax_config, custom_categ,
                  "/popnhax/custom_categ")
+PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_BOOL, struct popnhax_config, exclude_omni,
+                 "/popnhax/exclude_omni")
+PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_BOOL, struct popnhax_config, partial_entries,
+                 "/popnhax/partial_entries")
 PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_U16, struct popnhax_config, custom_categ_min_songid,
                  "/popnhax/custom_categ_min_songid")
-PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_U16, struct popnhax_config, custom_categ_max_songid,
-                 "/popnhax/custom_categ_max_songid")
 PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_BOOL, struct popnhax_config, custom_exclude_from_version,
                  "/popnhax/custom_exclude_from_version")
 PSMAP_MEMBER_REQ(PSMAP_PROPERTY_TYPE_BOOL, struct popnhax_config, custom_exclude_from_level,
diff --git a/popnhax/loader.cc b/popnhax/loader.cc
index 5fa0347..7c5b437 100644
--- a/popnhax/loader.cc
+++ b/popnhax/loader.cc
@@ -888,19 +888,12 @@ void parse_musicdb(const char *input_filename, const char *target, struct popnha
             bool is_gone = ( m != NULL && strcmp((const char*) m->title_ptr, "\x81\x5D") == 0); // removed entries all have this title (SJIS "-")
 
             // Update customs/omni songid list
-            if ( is_fresh || is_gone )
+            if ( is_fresh || is_gone || config->partial_entries )
             {
-                //TODO: remove g_max_id entirely
-                if (idx > g_max_id)
-                {
-                    g_max_id = idx;
-                }
-
-                if ( bst_search(g_customs_bst, idx) == NULL )
+                if ( idx >= config->custom_categ_min_songid && bst_search(g_customs_bst, idx) == NULL )
                 {
                     g_customs_bst = bst_insert(g_customs_bst, idx);
                     //LOG("%d inserted into customs bst\n", idx);
-                    //TODO: (beware: maybe we should still consider !is_gone charts as custom?)
                     if (config->custom_categ == 2)
                     {
                         add_song_to_subcateg(idx, subcateg);
@@ -967,8 +960,8 @@ void parse_musicdb(const char *input_filename, const char *target, struct popnha
             if ( config->custom_categ
               && config->custom_exclude_from_version
               && !is_excluded_folder(input_filename)
-              && idx >= config->custom_categ_min_songid
-              && (config->custom_categ_max_songid == 0 || idx <= config->custom_categ_max_songid) )
+              && idx >= config->custom_categ_min_songid 
+              && ( is_fresh || config->exclude_omni ) )
             {
                 m->cs_version = 0;
                 m->folder = 0;