I think I've seen this done, but I wasn't sure if it was proper to do.

Can this:
<conditions>
<or>
<if-op-attr name="uthRegGNps" op="changing"/>
<if-op-attr name="uthRegGNsis" op="changing"/>
<if-op-attr name="uthRegGNgmeis" op="changing"/>
<if-op-attr name="uthRegGNguest" op="changing"/>
<if-op-attr name="uthRegGNutp" op="changing"/>
<if-op-attr name="uthRegDataSource" op="changing"/>
</or>
</conditions>

Be condensed to:
<conditions>
<or>
<if-op-attr name="uthRegGNps | uthRegGNsis | uthRegGNgmeis | uthRegGNguest | uthRegGNutp | uthRegDataSource" op="changing"/>
</or>
</conditions>

Are the two synonymous? If so, can this also be done with an '&'? for the inverse?
Trying to tidy up some rules.

Thanks!