You can access your PC remotely using remote desktop applications. Many of these programs also have Smart Phone apps. This allows you to view your MetaTrader charts remotely from a computer, smart phone or tablet.
I use a free program called RemotePC
Sign up at https://www.remotepc.com/rpcnew/signup/free
The Smart Phone app is also called RemotePC
If you wish to work with someone using a conference call or web conferencing, I recommend Free Conference Call, which is free. https://www.freeconferencecall.com.