diff -r e93dc5b1da07 -r 7a2642891e13 ui/common/args.c
--- a/ui/common/args.c	Tue Jul 08 12:10:23 2025 +0200
+++ b/ui/common/args.c	Sat Jul 12 12:35:38 2025 +0200
@@ -1030,6 +1030,11 @@
     args->style_class = strdup(classname);
 }
 
+UIEXPORT void ui_sourcelist_args_set_static_sublists(UiSourceListArgs *args, UiSubList *sublists, int numsublists) {
+    args->sublists = calloc(numsublists, sizeof(UiSubList));
+    memcpy(args->sublists, sublists, numsublists * sizeof(UiSubList));
+    args->numsublists = numsublists;
+}
 
 void ui_sourcelist_args_set_varname(UiSourceListArgs *args, const char *varname) {
     args->varname = strdup(varname);
@@ -1071,6 +1076,7 @@
     free((void*)args->name);
     free((void*)args->style_class);
     free((void*)args->varname);
+    free((void*)args->sublists);
     free(args);
 }