run multiple demo account with only one instance calgo

how can test one robot with one demo account when have many robot ? i no live 10000 years. and no have 100 pc but one.
for solve this problem now run calgo in multi instance mode 2 or 3 Platform with same pc and different demo account,but this method is not valid. i thought another solution as possible : run 1 istance calgo with active many demo account on the same platform (10 or more account) and test my robot one by one with personal demo account. i hope that this features in future is possible ,thanks good day.