1) Click on your name at the bottom left of the screen, then click on "Personal Settings."
2) Scroll down to "Signatures" and enter your signature. When you're done, click "Apply."
You can create a new signature from scratch or copy + paste your current email signature. You can also add colors, images, gifs and emojis.
NOTE: Be careful not to copy and paste HTML formatting from your email signature since they can cause errors.
Congratulations! You've added your email signature to all your messages in SetKeeper! 👍