If you're a Quark user moving over to InDesign you may be a little perturbed by the fact that InDesign has the habit of locking all master page elements. The new user could spend a lot of time trying to solve this quandary, and may end up looking in the pallette menu of the pages to find the command 'Override all master page items'.

This, however, has the effect of unlocking all master page items, somthing that you probably won't want to be doing.

The best way of locally unlocking items is very simple: hold down Apple-Shift or Command-Shift and double-click on the item you wish to unlock.