Sticky Keys on Mac Mini with MacOS Sonoma (14.6.1)

I think I am still asking the wrong question. This will be the last time. I want to insert (not replace), for example, my email address into a document by inserting the cursor where I want the email address to appear and press a couple (or three—or one?) keys simultaneously (like command-f10 or control-0) that will insert the desired text, in this case, my email address. I won't bother your folks with this again. Thank you!

Bob:

Nossir. What I want to do is to INSERT text, i.e., my email address, to begin with, at the point where the cursor lies. Not "replace" text but insert preprogrammed, prescripted text. For example, program a <option-z> sequence with my email addy, which then inserts my email wherever the cursor lies. If that works I may be able to use it to replace highlighted text, too. By the way, I do not even know if "Sticky Keys" is the correct term. It may be "Hot Keys" or something similar. And thank you for your reply!

I must be asking the wrong question. How do I set up some keys to paste a prescribed text I define into wherever the curse is located? Text such as my email address or my name, etc?