Messages

I need the possibility to set the work limit per project.

Read this: http://www.efmer.eu/forum_tt/index.php?topic=449.0
The rule "Time left project" should be what you need.

It doesn't work well. The interval between rules checks is too large, the internet connection is fast, therefore too many jobs are loaded before new jobs will be disabled.
Another important buffer size. If buffer is large, then server sends many jobs in one transaction (for example, Einstein@home can send 20-40 WUs at one time) - much more than I need.
To limit work, it is nessesary first change the buffer size and only then allow new jobs, and after reaching the desired number of tasks disable new tasks and restore buffer size back. Rules can't do it.

As result: needs well working tool for limiting work for each proect separatelly.

PS. Complex verification after writing messages is very annoying.