Update Attributes Inspector:
Use platform-specific line break in copyTootipContent()
https://github.com/Infocatcher/Custom_Buttons/commit/360b209e0a5a597f935a59b5c42c216519cdf3a7
https://github.com/Infocatcher/Custom_Buttons/commit/f151fe9d09e4f4ed30f855b061c1da85929bdf56