Add counting tool like xshare to zoomit

### Description of the new feature / enhancement

Add auto incremental counting tool like xshare to zoomit.

### Scenario when this would be used?

when zoomit activated

### Supporting information

_No response_

Start by locating the ZoomIt implementation and its activation flow, then review the xshare behavior referenced in the issue. Clarify how the counting tool should increment and what input or display behavior is expected; the work is done when the agreed behavior is implemented and verified in ZoomIt.

Written by the indexing model from the issue text.