Would be handy.
Plugin ยซFind in Files 3โ has such a command, need to enter macros in one of dialog fields.
Not in Find in Files 4. And I believe it's better to be built-in like EmEditor.
Do you suggest to make a toggle option button in Replace dlg, which disables some search opts (backward...) and runs replace in all tabs?
Won't hurt. Can make these options disabled by default for beginner. And people who needs more feature can enable them.
Maybe later (or donate to speed up this task).
I am making it... new button appeared in Replace dlg.

@kvichans @dinkumoil @iRamSoft @artem3213212
@Alexey-T Good!
Is a new option to hide the new button?
@kvichans Why this option is needed?
I hate too wide dialog
Now i use it with comfortable width

Please, continue the way of using others buttons: hotkeys and opts to hide its
Ok, added options for hotkey and for visible.
@akizuha @kvichans @iRamSoft @dinkumoil @Cauterite @vhanla @artem3213212
I've put beta 1.91 with this feature, pls test it?
(beta also has new shell DLL)
https://sourceforge.net/projects/cudatext/files/beta_version/
@Alexey-T
I found a regression. I use a docked _Search & Replace_ dialog. When I start typing something in the _Search_ or _Replace_ input fields of the _Replace_ dialog and press left or right _SHIFT_ key, the confirmation dialog that asks me if I want to perform a replace in all opened files pops up immediately. Thus I'm not able to perform replace operations that contain uppercase characters.
Fixed, beta is updated. @dinkumoil
Beta is just updated again (refactored)
Tested, it works. Thank you for the fix.
As far as I am concerned, this issue may be closed...
Most helpful comment
I am making it... new button appeared in Replace dlg.

@kvichans @dinkumoil @iRamSoft @artem3213212