- Create a master page with a normal text-frame.
- Apply the master to a page
- Select the page
- To insert new text you first have to select the frame by pressing Shift+Ctrl
- Now you can Edit the contents of the text-frame.
Note: If you want to use the place-command (Ctrl-D) first select the frame then,
Ctrl-D and select the text-file you want to insert.
After the item from the master frame has been changed, it cannot be influenced by the master page it is a page item.