Why does keil erase softdevice hex and the app hex when doing a clean build?

[Craig]

I am trying to figure out how/if I can program the softdevice hex from keil? I know I can just use nRF studio however its annoying sometimes....I also noticed I cannot rebuild the softdevice hex and when you do a clean all it literally erases all hex from project including the softdevice, how can I prevent this and/or why is this happening?

[Craig]

No No I don't mean overwrite I mean if you press clean build from Keil from SDK any version but I am using 12.1 and 12.2 it actually deletes the softdevice HEX file and I am not sure how to rebuild it...is that even possible? I obviously realize I can just copy the HEX file and I know I can program it from nRF goStudio but that it.....

I am trying to figure out how to stop the Keil IDE from erasing both my soft-device and hex file from project folder?? I don't care if the application gets erased obviously however the softdevice being erased is a bit annoying.....Also I cannot remake the softdevice HEX once erased is this true?