Stock ending with EQ and BE

Hi,
Could you please let me know whats the difference between stocks ending with EQ and BE in NSE ?.
Can I sell the stocks with EQ and sell in with one ending EQ ?.
I dont find few of the stocks which was listing in my trading portal is not there...Instead of that I need to use one with ending BE.

Thanks...

A stock in the regular rolling settlement (T+2) is marked EQ.

One which is in T2T (trade for trade) in marked BE.

Stocks marked BE can be bought and sold on delivery basis only.

Thank you very much