This is a great idea! Something similar to Edit and Continue (Visual Studio) would save a lot of time. E.g. a big application update might break several selectors. Instead of stopping, fixing and rerunning the robot several times to find all invalid selectors, we would be able to do this in one go with this feature.
Also how about a self healing strategy as in Katalon studio. During the recording itself the system can save multiple reliable selectors and if one fails, execution can try to progress with the next selector in the list.
Currently we are not able to indicate the UiElement or change the selector in Debug mode because of that we need to stop the entire execution even if we want to change the single attribute value in the selctor.
If possible please allow to reindicate the UiElement and change the selector in Debug mode. It will save lot of time to developers.