[Chimera-users] Change the formal charge of amino acid side chains

Dear Chimera users, I need to change the formal charges of all charged AA side chains in a protein to be neutral and all open valencies to be filled with explicid hydrogen. I am very new to Chimera and I basically downloaded it in hope to find a solution to my problem. I know, it is not common to change the charge of a side chain and shouldn't be done usually. Does anybody have an idea how to do this anyway? Thanks a lot in advance! With kind regards Friederike