Allow to create a custom command and without sign in?

I have tried join in the last few day and found out it has really nice features but there are still many improvement needed.

First, why Join doesn't offer option to define custom command like autoremote does? Or, developer doesn't want to do so, otherwise autoremote will be obsoleted or autoremote user will be upset? It really hard to send command to Tasker without user defined command. Please make a consideration.

Second, i see that Join does provide api and we can generate api key so we can send any command from the web without any issue but it still require me to login into gmail account if i need to used its plugin. So can I just add my token key instead of sign in gmail account?