How to give a special power of attorney online to sell and purchase company shares?

Sir,

I would like to give a special power of attorney (made online as I am out of the UAE) to an agent in the UAE for my trade license (to sell & purchase the company).

But my visa & Emirates ID expired on Dec 25, 2021. My question is, will it be possible to do a power of attorney online with my passport instead of Emirates ID?

Also, if it's possible, can I directly appear in court for selling or signing a share transfer agreement or amendment in MOA for the purpose of selling with my passport?