Describe the solution you'd like
The ability to drop items out of your inventory even while you are combat tagged, instead of having to wait for the combat tag timer to run out.
Perhaps a boolean field within Tagged In Combat: Block: called ItemDrop: false.

There is no feature to block dropping items in PvPManager.
Probably look at Griefprevention, that's usually the plugin with that dumb feature.

Oh man now I feel like an idiot. Thank you for the advice!

It's fine, it's just it happens so often and almost always griefprevention lol