Yes you can customise
Firstly set up a schedule of the data you want to include. You can pick anything from the standard object list to any additional properties you have created. Save the schedule
Go to the publisher and open Info Set
Click that and you can then select the schedule you just saved.
All the data included in that schedule will be available when you click the Info button inside BIMX.
I use it to include all the specification data for the builder and any hyperlinks to products.
Tim Ball
AC26, iMac
User since V5