adding to grids via search

[klaernie]

Adding plugins to a grid should be a lot easier, if one could filter by the plugin name - e.g. "add all load average plugins".

I would imagine, that the filter would produce a tree-ish list, so one sees the full stack of "group -> server -> plugin" at a glance, and once selecting one of the items all below get selected too (checkboxes I mean).