Ignore scroll when modifier is used

[mattbatt]

Main problem: I don't have the right lingo to search for the answer.
What I'm trying to accomplish: If I tap my mouse's Button EXTRA key it does KEY_HOME, If i hold the Button EXTRA + Scroll up and Scroll down it will turn the volume up and down.
The Problem The Volume change works however the scroll wheel is also scrolling the page up and down in the back ground while changing the volume and it does the KEY_HOME thing in thing in the background too. Which wouldn't be a big deal except that KEY_HOME restarts YouTube videos from the beginning.

Thank you.

[sabudum]

Create your EXTRA+Scroll as normal, then create three extra remappings:

One will only remap the EXTRA key, as such:
set(extra, 1).hold().set(extra, 0)

Then create two remaps, one for each scroll, up and down, as such:
if_eq($extra, 0, wheel(direction, speed), KEY_VOLUME)

Where direction is the scroll direction (up or down), speed is the scroll speed (probably ok as 1), and KEY_VOLUME is either KEY_VOLUMEUP or KEY_VOLUMEDOWN as needed.

This will create the following scenario:
When pressing down EXTRA, a variable will be written with the value 1, this will inform other macros that EXTRA is being held down.
When EXTRA is released, the value will be set to 0 (zero).

When scrolling up or down, the macro will read the value from the variable, if it is 0 (EXTRA is not being held down), it will send a scroll event, however, if the value is 1 (EXTRA is being held down), then it will send a volume up or down event.