Registration required fields

Background:
I need a solution using Easy Social for registration of users. I actually have a two part registration that I have tried to combine.

Part 1. Site registration - this is the same as the basic Easy Social registration with a few custom fields which are required fields. This registration is easy for users to self register and complete online at one time.

Part 2. Application to an education program. This part of the registration process might require a user to complete some required fields at a later time.


If a field is required then the field must be completed at the time this section of the registration is completed however this creates a problem.

Question 1:
If a user needs to complete a field later (these fields might be a narrative that the user must write or a file the user must upload that the user needs to prepare) how could I create a registration solution that allows the users to complete these fields later, yet still require the fields.

The current Easy Social system keeps track of what percentage of all fields have been completed and posts a reminder on pages if a user has not completed all fields....Your user profile is 60% complete. The percentage calculation is currently based upon the total of all registration fields not just the required fields).

Question 2:
How might I send email reminders in addition to this webpage reminder?

Question 3:
My registration/application process must have 100% of required fields completed before allowing the user access to the next user group (Registered Program Users). Can I filter the users who have not completed 100% of the user profile?