yarpmanager should have an abort button

[drdanz]

trafficstars

Too many times when you hit refresh on yarpmanager you have to wait for it to refresh the status of all modules, connections and resources. When you have to kill the app it is just wasted time. It would be really useful to have a "panic button" that aborts all running jobs, so that you can immediately stop/kill the modules.

[drdanz]

Perhaps this is no longer an issue since refresh is now way faster? cc @Nicogene