I have two inset maps (contained within two data frames) within my main data frame. I am displaying point data with labels in the main data frame and some of these labels and point features are obscured by the frame of the extent indicators: is there a way to draw the extent indicators below the point features and lables (i.e send the extent indicators to the back)?
I think there no way to change the drawing order of an extent indicator.
but you can draw a hollow polygon with the extent of your data frame after you finish layout,then reorder it in TOC to get your the points above . and don't use pan tool after that.
I've had a similar problem. My solution, in Pro, was to give the extent indictor a coloured fill, set colour transparency to 50% and remove the outline colour.
Map detail, which clashes with the extent indicator, will then show through.
You could try the same with your outline transparency.