@kmishu96 The first thing is u need to record the http request from hotmail signup page till finish, and use the http record/sniff result, its not easy bcoz microsoft/hotmail have much protection etc. or u sniff all request from another sniff program and put into BAS :)
If your cookies in same format as BAS, you just read it from file to variable and go Network-load cookies-set cookies for browser. If format of your cookies not compatible with BAS, compare and convert all your cookies in right format