When finding text in a document it is possible to use F3 to move to the next instance of the pattern that was searched.
When replacing text however the F3 key finds the next instance of whatever text was last searched for instead of repeating the previous find-replace operation. There does not seem to be a way to repeat the last find-replace operation the same way it is possible to repeat the last find operation (This seems like a pretty common use case for a text editor so maybe I missed something).

Having the the F3 key find and highlight the search pattern that was used in the last find-replace operation and then having another key (F4?) to replace the text with the replacement text used in the last find-replace operation would be ideal.

Having a replace all key to replace all instances of a pattern would be nice too