[Pharo-users] change process variable while process is running

Hello everybody, I am kind of new to Pharo so I apologise if my\ question is silly :)\ how can a change a variable in a process while the process is running?\ for example in:\ \[\[ | msg| msg := 'help me'. 100 timesRepeat: \[(Delay forSeconds: 0.5)\ wait. Transcript show: msg; cr\]\] fork.\ \ how do I change the value of msg while the process is running in order\ to modify what the Transcript is showing?\ is that possible?\ thanks.\ Domenico