This idea would be useful to somebody creating multiple remove material extrusions when all the extrusions are through all. If you set the config option auto_add_remove to yes and use the drag handle to push/pull an extrusion all the way through an object to remove material, the specified default depth value may not meet design intent. The key here is that the extrusion is dragged past any possible material to be removed and extra depth has no real function. Rather than go back to the ribbon to select the through all depth, have a config option that works in conjunction with the auto_add_remove option. If auto_add_remove = yes, then auto_through_all (a config I just made up) can have a no*/yes option. Default no* will allow the specified depth value of the remove material extrusion to remain a modifiable dimension, even if it is past all possible removable material. If auto_through_all is set to yes, then the through all depth option is automatically selected. I am picturing a user dragging an extrusion past all material and seeing the depth option dynamically change to through all, but when the user pulls the drag handle back into material, the depth changes back to a specified depth value. This should only affect depth selection during creation of a remove material extrusion. This should not change the depth value of any existing extrusion in the model.