Hello,
The standard way of finding idle bots and workers is left clicking on the bot icon, between the bulldozer and changing the transparency of buildings, which cycles through all idle units randomly.
This idea would be to introduce a right click option on the icon so you can see the total number of idle bots of each type. The list which this brings up would allow you to left click a unit on the list and would select all of the idle units of that type.
Let me know what you think
DEFINITE YES!
You can help by EXPANDING IT.