I've done a good deal of reading on this and watched a few videos and am still unsure how to do this.
I want to put my PGP key on my account profile so a vendor can see it and message me if he needs to. I see how to view the certificate and fingerprint, but not how to view my actual PGP key.
Left click on your key in the main Kleopatra window to select it.
Type Ctrl+E to save it to a file (perhaps to the Desktop).
Open the file with notepad and copy the key to your profile.