Ok, im new to this forum, i had to recently replace the shower walls in my bathroom and we went with a plastic insert wall unit, from where we cut the old dry wall out to fit the new tub to the studs needs to be finished. We didnot cut the dry wall all the way up, so now I need to cover the flange that the screws were inserted in. I don't intend on putting tile around it, i just want it to go flush with the existing dry wall. This house is 40 years old. Thank you in advance for your input!