I'm experimenting on a technique I read in InDesign magazine by Stefano Bernardi which may work. It is as follows… 1. Create a text frame on the Master page, while dragging, split the frame horizontally and vertically using arrows on the keyboard (Gridify your frame), this way all frames are threaded, you may do the same on both pages of the Masters (Spread) but make sure you link last frame of left Master page and first text frame of right Master page. 2. Create a Paragraph Style for the sequential numbers, in the left pane, click on Bullets and Numbering to access its options and change it as per below screenshot. 3. In left pane, click on Keep options, and change Start Paragraph option as below, and hit OK. 4. Type tool, place insertion cursor in the first text frame on page 1, (remember this frame is on the Master), apply your paragraph style you've just created, press and hold Return button as this will apply Paragraph Style and the cursor will jump to next frame. 5. What I did more, I changed InDesign's Type preferences for Text reflow so InDesign would add and delete pages as needed automatically.
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