Problem with the selective tool

[Pierre_Simard]

Hello wonderfull person,


When I use any "selective tool" (lacet; square; etc) and I want to add more selection, I can't add it to my previous selection (event while using "shift")...  It really problematic (time consuming) because I have to do one selection at a time, extract it and do it again with the next selection....

HELP!!!!

Thanks in advance!!!!

Pierre