How do I go about taking the Level 1 Model Builder training course on line?
You can refer to below links:
Procedure is to get a training Anaplan ID.
You can avail 90 days trial version and using this ID, from below learning anaplan website, you can register to any courses and complete.
Register in community.anaplan.comLogin to learning.Anaplan.com https://community.anaplan.com/t5/Anaplan-Access-Beta/ct-p/ATBReg
Hope this helps, happy planning!