Hi,
I can’t help but think UE4 would have made a similar system to ‘add widget to viewport’ with a simple change ‘remove widget from viewport’ with a reference to what widget to remove. Would have been far more straightforward XD
Well, my knowledge may be lacking, but I’m not put off by hard work 
Thanks for boiling it down for me, I’ll look into the solution you suggested and hopefully wrap my head around the concept enough to get something usable. Thanks for pointing me in the right direction 