I'll bring good news for you!
Yes, it's possible to trade multiple strategies concurrently in the same symbol in MT5.
Follow those steps, you'll need:
Ask your broker to change you mt5 account type to hedge;
Export each strategy to a expert advisor (.mq5);
Open the same symbol several times, different chart window, in MT5 terminal;
Attach to each window the strategies;
Until this date we don't have a "single" expert that contain X more experts inside as Popov did for MT4;
There is no problem at all, as you can do it easy with the steps I've explained above...
This approach in my point of view is far better than a "single portfolio expert containing X strategies" because you can keep track of the magic numbers for further analysis and take far more control of the experts;
*Expert tip* Folow Petko Alexandrov, he is doing an excellent job teaching how to master expert advisor studio, has many courses at udemy and his website. He show how to keep track of the portfolio experts as profitability of each strategy in his courses that can be bought for a penny at udemy.
Wish you all the best! Cheers.