This is done in the same way with the only difference that:
1) Existing AccountProfileSchema should be replaced
2) In the diff array of the replaced AccountProfileSchema you need to add 3 new fields.
I've also previously showed how to add new columns to the same profile schema, but in the OpportunityPage (here). Same approach here should be used to add new columns.
This is done in the same way with the only difference that:
1) Existing AccountProfileSchema should be replaced
2) In the diff array of the replaced AccountProfileSchema you need to add 3 new fields.
I've also previously showed how to add new columns to the same profile schema, but in the OpportunityPage (here). Same approach here should be used to add new columns.