Feature request: Desktop client tab view enhancements

Hi Xmind team,

Perhaps a simple feature request:

* Enable easy selection of other maps in a workbook in the desktop client similar to the xmind.works web interface. Could be in a context menu when right-clicking on the map title (where the rename, copy, paste, duplicate, save as options are), or a dedicated popup menu like on the web client.

* Lastly, maybe an option to have the list of maps as a vertical list on the left hand side of the window which would enable many more maps to be instantly clickable.

Use case: I have an Xmind workbook with 26 maps in it and jumping between the maps can be a bit time consuming especially if I'm going between map #1 and #26. I always need to scroll the list to do that.

Thanks for all of the really great improvements to Xmind that have been implemented recently.

Jason