LLOS profile graphs not very accessible

[BobBooth]

LLOS creates and attaches profile graphs to each sight line. These are PNG files added as feature class attachments. In Pro, if you click on one of the lines, you can see a thumbnail image of the graph, but it doesn't get bigger if you enlarge the identify window. Right-click on it gives option to save as, but not to open. This is useful output, but it is not being made easily available to the user.

Expected Behavior

I would like for the image to be more easily available through the popup (both in Pro and ArcMap)

Current Behavior

Image is shown as thumbnail. difficult to access.

Possible Solution

Look into popup code.

Steps to Reproduce (for bugs)

1. Run LLOS
2. Supply input observers, targets, DEM
3. Run tool
4. Click on output LOS layer. See thumbnail of profile graph (in Pro), paperclip attachment indicator on Identify dialog (*and only segments color coded in HTML popup) (in ArcMap).

Context

Profile graph gives a better indicator of what the intervening terrain looks like, how it is affecting the visibility along the line of sight.

Your Environment

Pro 2.1.0 / ArcMap 10.5.1 LLOS tool from Dev (5/22/18)