Thanks for the detailed instructions.

One issue I’m facing now:

For post categories, I can block the users by adding only allowed CPT IDs with Allow – this will display only allowed categories pre-selected when they try to add a new post.

For Business Directory which has 20 categories, I do not wish any of them pre-selected. If I add their IDs to Allow, the very fist Business Directory category is pre-selected, which I do not want.

Is there way to achieve these two at the same time?