Is it possible to clear all entries from the master log or individually from the various logs?
Yes. You can select the Masterlog table, right click and select delete. This will delete all entries.
So does this mean that you can create a filter to view all the log entries you want to purge and simply right click and delete them from the master log?
I have a customer whose logs are filling up too fast and they'd like to filter and purge unwanted entries.