Get a loop switcher, I use an old Rocktron Loop 8 Floor. Guitar goes to loop 1 input, loop 1 send goes to RM22 input, RM22 send goes to loop 1 return, loop 1 output feeds loop 2 input. Loop 2 send goes to RM4 input, RM4 output goes loop 2 return, loop 2 output goes to RM22 return, or to as many...