Sorry, you can't. And I don't have time to update this add-on for now.
All workshop maps were manually added by me when creating or updating this add-on.

I can't update this add-on for few reasons:
- I'm busy working on more important stuff.
- I don't play BM very much now.
- Flickering New UI that was main reason of creating this add-on is now fixed in Necro Patch, with only few caveats.

If you really want to use 'newer' workshop maps, you can unpack this add-on and edit files then put them in your BM directory. The syntax should not that hard to understand, and iirc, there should be documentation of it too.

ok im a bit confused lets say i add a workshop map that isnt on this list how do i add it to bonus maps?

Just subscribing this addon and its requirement won't display bonus menu. Read the description of the requirement addon and you'll get what I'm saying. I will update this addon's description for that.

I subscribed, now where do you go to see bonus map menu? I dont see anything in main menu that has changed.

doesnt seem to work on deck

I don't even get what you did with this addon and Further Data. I've also subscribed both addons, and it shows normally. Try to re-install Black Mesa (delete all current files) and only extract ZIP file of my addon to bms directory.

You must not extract Further Data content. It may overwrite files of my addon which breaks my addon.

It is normal that you can see and play Further Data with this addon. If not, you might messed up something.

Still no maps shown in the Bonus map menu.

Should I put Further data VPKs inside 'Workshop Maps' folder?

I put all those workshop maps in one folder. So if you also extracted ZIP file into your bms directory, it will show you a folder named 'Workshop Maps'. Further Data is inside of it.

There are no custom maps except for your addon when I click on bonus maps. I have Further Data subscribed, but it doesn't show there for some reason.

very good