SkieCan Class 6 and Class 11 have different policies and apps?
Yes. Each class is its own group, and each group has its own policy and app list. Class 6 can have a strict policy and a short list, Class 11 a lighter policy and more apps. Organisation defaults still apply to both, and a block set above cannot be reopened below.
Grades differ in what they need and what they can be trusted with. In Skie, the group is the place where those differences live. Create a group per class or per grade, and attach the policy and app list that suits it.
A sensible pattern is a base policy at organisation level with the hardening switches on and the filter chosen, and a grade policy forked from it for any differences. Junior groups might hide the Play Store, disable the camera outside art lessons and run a narrow list. Senior groups might allow Chrome in restricted form and a wider list for research.
Schedules add the time dimension. A junior group may have a school-hours window only, while a senior group has school hours, a study block and a break window with extras. Exam week can use a stricter fork of the policy attached to the exam group.
When students move up a year, promote a whole group in one step, instead of moving them one at a time, and the group's policy goes with the next class's group. Use the where-used view and impact preview before changing a shared policy, and the effective view to check the result on a sample tablet. A practical tip: keep grade policies few and named by grade band, such as 'Primary', 'Middle' and 'Senior', and fork them rather than rewriting. See role-based access for school device management.