We have some builders with 2 or even 3 repositories to checkout.
One or 2 of them are the main source repositories, and then we have one helper
repository with tooling to which helps the build.

When we enable SVNpolling we like to trigger the build only if there is a change
in the source code repository, not if there is a change in the tooling
repository. If the tooling repository has a change a great number of builders
start running.
To prevent them to start running we can use the 'Excluded Regions' part, but
that is for all repositories instead of repository specific.
For the tooling repository we like to use */.* but if we do that SVN polling
is not working anymore, all repositories are skipped.

Can this feature made per repository?