I think one of these 2 links would be able to help you out:

Add Save as Draft feature to Run Process activity form

Add Save as Draft with Validation in Form

Hi, for large forms you may want to consider using the Multi Paged Form element.

Hi Ian,

I want to save my form data before the process is initiated The 2 links refer to situations when the process is already started. Thanks.

Hi 

Unfortunately this does not solve my original problem. More than the size of the form it is the saving that I would like to know. I can rephrase my question as:

Is it possible to save a partially filled form (without validation) and when ready, submit it ( at that point do the validation and then start the process)?

Thanks

Just realized that I can start my process with a simple form and have the bulk of my fields in a much larger form. Joget does not allow a "Save As draft" on the form that starts the process but I can do it on my subsequent forms within the process. This solves my problem.

I followed the Expenses Claims App as an example.