It would be nice if the Import Popup could provide a "check all" + "uncheck all" or "toggle" options to (un)check/toggle the checkboxes for Update, Create an Delete.

For instance, I want to install the replaced templates for 5.2 -> 5.4 and also want to get rid of all deleted entities. Right now this requires 7 clicks for each individual template, which is quite a hassle.