Few years back I had my H4 extension and first H1 filing at same time. The H4 visa I94 had expiry of 15 days before October 1. I got the H1 approval first with I94 same as of H4 with effective date of October 1st. I had to withdraw my H4 extension to avoid H4 approval coming after H1. I couldn’t leave US before H4 I94 expiry as I had to take a technology training for specific a project that had to start on October 1st and no visa stamping dates were available before that date.
So there was a 15 days gap between H4 I94 expiry and H1 I94 start(both I94 numbers were same). Now I am filling my 485. So to support lawful presence, do I need to submit any additional document for 15 days gap? and what document I can provide for it?