The Map Tools | Layer Tools | Query Objects command allows you to query objects in a single base layer. Because it only works on objects in a single base layer, and the results could return multiple selected objects, you must be in edit mode for that base layer before the command can be activated.
To do this:
- Right click over the Base layer in the Contents window and click Start Editing.
- Then you can use the Map Tools | Layer Tools | Query Objects command.
- When you are finished querying or editing items in the base layer, be sure to stop editing the group by right clicking over the Base layer and clicking Stop Editing.
Updated October 27, 2017