It would be great if security could be reset per user / list combination when importing new security.
At the moment you need to specify:
1) Exactly what you have in read or write and load it NONE
2) use a top level which you then load on NONE
in order to clear the security before applying new security.
It would really help the security management if you could tick a box in a security process which would say clear security before load on all users/lists that are mapped in the upload. Then we do not need to create special processes in order to clear the security via the NONE column and it would safe a lot of time.
