Read macros from local .md file

Thank you for the great work! This is an awesome plugin.

Is there any way to get mdmath to read the macro definitions directly from the md file I'm editting?
i.e. in the .md file I'm working on I'm declaring \gdef{\something{..}}. Can mdmath read it directly from there, and render it in the preview window, instead of having to also declare the macro in settings.json?

Thanks!