Hello, first of all, congratulations on the great product that is the IQ Tester.
A company I work for has a similar device that has a feature I really miss in the IQ: the ability to record DMX sequences. Let me explain. My colleague, using the device I mentioned, records a highlight sequence from the console onto their device. Then, before the LX goes up, they play back that highlight to check that all fixtures are in the correct mode and properly addressed.
Another option I'd really like to see is a translator for LTC to Art-Net Timecode and vice-versa.