indices filter/indicator for snapshot list

[yehosef]

When choosing the index to snapshot there can be many (hundreds) of indices. To choose one or a few of them can be tedious. If there was a basic js filter on the indices list it would be much easier. I assume this would be equally applicable for the restore but it might realistically be less of an issue.

It would also be extra nice if there were either two windows to clearly see which are selected or a checkbox, etc. As is it not you have a ctrl/cmd-click to select multiple and if you select a second index out of view from the first one then you might accidentally click the second with a regular click, unselecting the first - and there is no visual indicator the others are selected or not.

The second is less of a pain point, but could still be a nice improvement.