Feature request: limit search/replace to one block or selection

[pihentagy]

Have you searched existing Github issues to see if someone has already requested this feature?
Yes

Is your feature request related to a problem? Please describe.
In my scrach I'd like to replace something, but just in one block

Describe the solution you'd like
Limit scope of replace to the curent block / to the selection.

Describe alternatives you've considered
no idea

Additional context