Prevent spindle stop on tool change

Hi. I am using the somewhat standard Axis ( a few mods) but find the spindle stopping and starting on every tool change annoying. I have 2 manual tool turrets with set tools which I will automate at a later date but want to prevent the M5 code being given on an M6 code - that is for the spindle to remain running through the entire operation until the end of the program. Can this be done?

I believe it is an option you just have to enable in the ini file.
linuxcnc.org/docs/html/config/ini-config.html#_emcio_section
TOOL_CHANGE_WITH_SPINDLE_ON = 1