My amp has a ModeAnalog button which toggles, and Mode button which cycles.

For some Inputs, I need analog, so I would push ModeAnalog.

For other Inputs, I need digital, so I would push the Mode button once to go from Analog to Digital.

If it's already in Digital mode, additional Mode buttons would cycle through other modes which I don't want (and which doesn't include Analog).

An inelegent method would be:
For all Analog Inputs, send ModeAnalog
For all Digital Inputs, send ModeAnalog, then Mode (to switch) back to Digital.

Any better ideas?

What you need to do is to create a state variable:

<FEATURE>
<NAME>InternalState</NAME>
<STATEVARIABLE>
<NAME>AnalogMode</NAME>
<VALUE>Analog</VALUE>
<VALUE>Digital</VALUE>
<NEXTVALUE>
<IRPRESSACTION>IRAnalogToggle</IRPRESSACTION>
</NEXTVALUE>
</STATEVARIABLE>
</FEATURE>

And then within the activity you can say:

<SETUPACTIONS>
<SETUP>
<DEVICENAME>xxxxx</DEVICENAME>
<OPERATION>SetAnalogMode Digital</OPERATION>
</SETUP>
</SETUPACTIONS>

or

<SETUPACTIONS>
<SETUP>
<DEVICENAME>xxxxx</DEVICENAME>
<OPERATION>SetAnalogMode Analog</OPERATION>
</SETUP>
</SETUPACTIONS>

where xxxxx is a device id. Harmony will automatically remember the state and only send the command when necessary.

I don't think the code:

IRAnalogToggle


will work in my case because two different buttons are needed to move from one mode to the other.

If you feel like experimenting, try to add another NEXTVALUE section. Not sure if it would work though. Here's a proper way to do it:

<FEATURE>
<NAME>MultiInput State Input</NAME>
<INPUT>Digital</INPUT>
<INPUT>Analog</INPUT>
<SETINPUT>
<INPUT>Digital</INPUT>
<IRPRESSACTION>IRDigital</IRPRESSACTION>
</SETINPUT>
<SETINPUT>
<INPUT>Analog</INPUT>
<IRPRESSACTION>IRAnalog</IRPRESSACTION>
</SETINPUT>
<INPUTDELAY>800</INPUTDELAY>
</FEATURE>

And use it like this:

<SETUP>
<DEVICENAME>xxxxx</DEVICENAME>
<OPERATION>SetInput Digital</OPERATION>
</SETUP>