You can keep a copy of a User's training documents on your Formitize account by uploading it over the Web Portal.
Go to Admin > All Users > select the edit arrow for the User > Training tab > + New Training.
A window will pop up and you can fill out the training details and upload the relevant training documents, as well as select the User Group permissions for who can view or edit the training documents. Once completed, select Save & Close.
The training documents will now be listed, and can be edited any time by selecting the edit pen.