Manually trigger cron jobs

Since cron jobs might redefine variables, it could be that they do not work (if a variable is missing or wrongly defined for example). For debugging issues with cron jobs, it would therefore be useful to be able to manually trigger a cron job: a button right aligned on the cron job title line "Force run" (for example) would allow to run now the cron job while keeping all its other properties (including being routed to the cron job's outputs).

So instead of committing many versions trying to have it run in the next few minutes to investigate what might be wrong, it could be manually triggered...