Contents edited from outside while editor is running

Hello. Is there any way to editing some files on contents folder with other editor while the UE is running on?
I have an error message that the UE is locking the whole files under the Contents so I can’t write any of them. From my dev environment, I need to switch tools between UE to other editing interfaces very frequently so I hope there would be good if I overwrite some files without quitting UE.
Please help me guys!

I’ve found the reason of this happening.
It was my fault that I didn’t closed the file handles after reading the external resources.