Aligning paragraph shading offset to margin
Hi all,
I use paragraph shading with offset to create a box for title name of graphs (FIGURE 15).

However, the offset goes over the margin:

How do I make it so the text box automatically adjust so that the green shading offset aligns perfectly with the margin? I tried using paragraph style inset but it doesn't work. I used Object Style Size and Position options and it does work. Is there a way to set this using paragraph style only, without using object style?
Here's my screen cap for paragraph shading style:



