LHC@home

after lhc(at)home and test4theory were folded up, it would be desirable the applications which one to be able to select wants!to (how in other projects quite possibly, e.g., Seti)

Indeed, you can, WolWoy,
On your Account Preferences page, you can choose which applications to run. My laptops don't have enough memory to comfortably run Atlas so I have set to only run Theory and Sixtrack. You can even set different preferences for different machines using the Home or Work locations on each machine's page.

If you are asking about prioritising between applications, the Project decides that. I sometimes set one machine to only accept Sixtrack if there are lots available, even aborting unstarted Theory tasks to free up space.

after lhc(at)home and test4theory were folded up, it would be desirable the applications which one to be able to select wants!to (how in other projects quite possibly, e.g., Seti)

If you don't can select the subprojects in your preferences, you are maybe still connected to the old LHC-url.

Several months ago from the NEWS:

LHC@home consolidation
As part of consolidation of LHC@home, we have setup a new server web front end using SSL for this project. The new URL is:

https://lhcathome.cern.ch/lhcathome