Since this is a pretty old topic, I’m not exactly sure what you’re looking for, but here are two parts that could meet your needs.:
1) Create a horror filter:
Add text HORROR in the comment field.
click save table
check 'advanced search' check box
In the newly open window, make a new filter by clicking the + button
name it for example HORROR
in the comment field of the advanced search, also type HORROR (this is actually the filter)
click Save.
when clicking search, it wil show all tables with comment is horror
now 'tag' all your horror tables
Within PinballX you can select the list, and see it is showing the filter with 2 tables of my test
2) if you want a horror system (so it could have it own Playfiel/backglass/topper etc, you must create a new SYSTEM called Horror from the settings.exe:
Do for example, I create withing settings a VPX Horor where the tables resistse in the same folder as my normal VPX tables :
You can copy or move the entries to the new system (NOTE, it's database entries, not the VPX tables itself !):
now, you will have a system called horror :
I'll hope this will make sense