How do I add people to be able to control my voting / RoESC?

Send them a link to the page of your voting / RoESC (for example https://vote.gabys.xyz/manage/gesc or https://vote.gabys.xyz/manage/gesc/05gf) and they'll be asked to insert the password you set when you first opened that page. After inserting it they'll be able to fully control the voting / RoESC.