Not sure if it can be done on the app, I never have used it. On a desktop (or through a browser) You can; Hover on your Avatar that is at the top right corner of the page. Select Signature. Please keep in mind that the forum guidelines apply to signatures and that there are size limits and gif restrictions. Edit: Oops, I am too late. Glad you found it.
I came here to ask the same thing. I've tried to set my signature as a link to my journel. When I open signature it is there, but when I post nothing comes up? Am I doing something wrong?
I see it on your profile info. I think your image is too big for a signature. Try thumbnail size maybe?
This is what I want Cone check out my grow; First Grow - 600w mh/hps - soil - photoperiod It's saved in the box when I click on sig but it doesn't show. I don't have a pic set either...