EDIT
Just figured the below out - for anyone interested, once I selected ‘inputselect’ as an action in Webcore, I just needed to also set the source name by selecting the ‘parameter’ drop-down and ‘string parameter’ then, in my case type AUX2 in the value box. Apologies, I was originally under the impression that all of the individual sources would show as available actions.
Hi all, apologies digging up an older thread, but I was wondering if anyone could help me figure something out?
I’ve managed to install @Kristopher 's device handler for my DENON X4200 - all is working well, I can change volume, mute, select next source etc.
But what I cannot do is seemingly figure out is how can I discreetly select a source for use in things like Webcore? @SBDOBRESCU - I saw that your DH extension to this code does this, but I cannot get it to install on the Classic app, it just force closes no matter what I try and I’ve read that you’ve long moved on from updating this… 
Accordingly, I wondered if anyone could tell me what I would need to do to be able to expose discreet source selections to use in Webcore amending Khristopher’s code if this is required?
Many thanks in advance.