NO! totally missing the point, you want the fakecall either right after opening app, or 15-30 seconds later to move your hands away from phone, no big button, just the vibrations sailfish gives you when you pull down from lock-screen, so you add the app to the top menu, press power button, and slide one-two-three vibrations to initiate, this has to be from pocket, big button doesn't help

edit: there is no fake call, this is just cover for you to avoid bad meeting/conversation, no video/audio to record, this is just to give you an excuse to escape that, seriously, half of the options you wrote about are already in callrecorder and next few are in the next revision judging by translations/strings, this app is nowhere near as complicated, this is just to give you an option to pretend this is 'important' call you need to take and escape