Handling jobs with same macro, queuing

[ldarrambide]

It still happens now? Maybe the command line program does not support multiple instances of its process. Then add lock near the beginning of the shell-menu-triggered function.

I put the lock in another place, but yours makes it do the job. Sometimes, I wonder why I struggle so much
with little details problems....

When it was macro, it did not run if previous instance of the macro was still running. Now two threads of the function run simultaneously in this case; and two processes of the command line program launched, unless there is lock .

Will use more functions than macros, seems more flexible..

thanks again.