Orbis or other Brokers

I have a need to trade in far otm strikes. For this I have to migrate to Oris.
My question is that what will happen with my existing equity and currency positions which I am holding for far months?

If you do not allow quity or currency, then basically I lose the opportunity to trade in these. Why Fyers, icicidirect, etc. allow trading far OTM?

Please suggest regarding my existing holdings of how will I manage them?