What's this "Full Custom" view thingy
We currently deliver Quassel with a set of predefined so called Buffer Views: All Buffers, All Channels, All Queries, and All Networks.
While you've probably managed to figure out their meaning, there is an additional View called "Full Custom". This view allows you to show only the buffers you want to be shown. Just drag and drop buffers from other views into the open field to add them or select them and press Backspace / Delete on your keyboard to remove them. The content of this view is currently not persistent, so when you quit Quassel Client, your setup will be lost.
In a future release you can have as many custom views as you wish. Being stored in your core profile, this enables you to easily chose between your preferred views. For example you could create a view with work related channels. There will also be options like: only show buffers where I've been recently highlighted.