Thanks to reswobslc, who developed version 1.76, which has many improvements. Here is his summary:

Fixed a crash in “Macros” when deleting a macro
Added the ability to set a Macro triggered by double-taps and holds on Relay switches
Added visible note that macro triggers must be linked to controller
Added about 15 pop-up helps to EZIOxx tab explaining individual options (since I was confused 1st time I tried to use this)
Added a new “templates” feature to EZSrve/EZBridge “Control” page to quickly fill in common XML commands
Added a “clear” button to “Control” page
Added the ability to send a batch of multiple commands via Control page, instead of just one. (I introduced a 0.2 sec delay after sending each “” to give the module time to process it.)
Added the ability to recall the EZIO module type and Insteon ID from a previous session.
Fixed a condition where the IP Address field can get populated with extraneous text upon program start
Fixed a misspelling of “SmartLabs” on the intro page
Changed the displayed version number from 1.75 to 1.76

https://sourceforge.net/projects/shnutilitysuite