"Access to Your Schedule" is not available. R6 client on R7 template

Good morning,

Our servers are running with a Domino 654FP2 and the DWA7 template is being used for some of the users. Notes is version 654.

I have found that the users using the DWA7 template arent able to set the “Access to Your Schedule” in the calender profile to allow others to see their busy time. They are able to allow everyone to see it or none. But cant specify just a few users - the field to enter names is being greyed out.

When using a Notes 7 client there is no problem.

I have been looking for the place where/why the field is being greyed out with client is less than release 7 but have not been able to do so.

Can someone tell me where this is set and what consequenses it would to change this (to be able to use a Notes 6).

Looking forward for some help.

Cheers.