Adding a new preset signature

Hello. I'd first like to share my frustration regarding the limitations of Adobe Acrobat Pro in managing preset signatures. It's disappointing to find that Adobe Pro restricts users to only two preset signatures. As someone who frequently needs to sign documents with variations of my name and initials across three different languages, each with distinct scripts, this limitation poses significant inconvenience.

Why is that? Is this the best solution Adobe can offer?
Moreover, attempting to add another signature requires deleting an existing one. Unfortunately, the "minus" button does nothing. I'll appreciate your help. Thank you.