First, if you have a squad, hit tap until you got the one you want. If you see detailed info about one liberal, hit 0 to see the entire squad.
If you don't, hit R (review liberals), hit Z, hit the letters of the members you wanna get into the squad (up to 6), hit enter, type your squad name, and it's done.
If you have a squad and wanna add, remove, or replace members, hit the letter before the squad name, hit the letter associated with a liberal already in the squad to remove him, hit a liberal not into the squad to add him. If you notice an "AWAY" after a liberal (code) name, that means he is in another safehouse than the one your squad is, and thus can't join it.
If you have a squad and wanna create another one, do as if you don't have squad.
To delete a squad, just remove all it's members.
Anyway, I found a few bugs:
Leadership wasn't removed from recruitement (Liberal needs more juice or leadership to recruit), and political leadership skillset (Trained skills: law, persuasion and leadership), and cooking wasn't removed from selling brownies (money earned is based upon the activist persuasion, cooking, street sense and charisma. It raises persuasion, street sense, business and cooking.), nor was it from street survival (Skill trained: driving, first aid, cooking...)
Liberal help screen on selling T-shirts still says it costs 4$ a day, but it doesn't cost anything anymore.
Prompting the liberal help screen on selling portrait sketches get you the one on playing street music.