NC changes - dumb question from relatively new MNer

[hardtostayfocused]

Can anyway tell me - if I change my nickname for a one-off post - can I flip back to using this one afterwards?
Thank you!

Yes, you can.

Yes you can. Once you've used a name, even if just once, it remains yours. I have a couple of alter egos for "delicate" posts
Just return to your profile and change back. But you can't have 2 names on the go at once iyswim.

Thank you!