Just updated the archives for the Dash application. Does the auto update work for you?
So here you can click to launch Dash and install our plugin help:
MBS Xojo Plugins and MBS FileMaker Plugin
You find the docset links also on our reference websites where you can download archive manually if needed:
MBS FileMaker Plugin Documentation for Dash and MBS Xojo Plugins Documentation for Dash
Feedback is welcome.