There are no symbols in the schematic that allow me to highlight individual pins directly. I can add and remove net connections readily, but no resistor, IC, power or ground tap, connector, etc. etc. has a pin that is separately clickable. I can cross-probe to schematic pins from PADS, though, which is interesting. If I have PADS set to click "anything" and I touch a pin on the decal xDx will highlight a pin and show me the properties you requested. That doesn't seem to jive with your assumption so I'm guessing something is broken or some tick box is unchecked somewhere.
I learned some things and did some things without solving the problem. Process looked like this:
When I probe pins in PADS I see that PADS and xDx disagree about the fuse. Pins 1 and 4 are on the left side (should be 1 and 2). Pin 2 is clickable but Pin 3 is disassociated. No highlight or properties show up in xDx whatsoever. Following that I:
1. Found and removed an incomplete PADS CAE gate that incorrectly specified 2 pins only. I should now only have an xDx to PADS Layout relationship possible.
2. I clicked "Define pin mapping of Part Type pin numbers to PCB Decal". This results in a warning and won't save the setting. Seems okay though
"Warning: Pin Mapping is no longer needed - all pin numbers in part type and decal are equivalent."
3. I re-ordered the pin sequence in the xDx library editor. If I clicked the around in the editor the pins were identified correctly but I moved pins around and renumbered my list so they are sequential in the symbol editor. It is still true that 1 and 2 are "left" pins and 3 and 4 are "right" pins.
4. I verified that the sequential list in the PADS part definition is no longer used. All entries are blank.
5. I updated the schematic symbol
6. I updated the fuse part and decal from the new library definition
7. I forwarded to the PCB using the annotation tool from both applications
The process had zero effect on my results. Pins 1 and 2 still cross probe on opposite sides of the schematic symbol and pin 3 is still logically missing. No properties for pin 3 show up.
Edit:
Ran "Check Design against PADS Decal Pin Numbers" tool. Result was "No errors were found for this design"
Ran xDx diagnostics. All 17 of the default scripts passed which includes tests for
empty labels
duplicate internal ids
net connections
component graphical data