No. You need to merge the two source codes.
Not with metatrader, there are some 3rd party software that can help you.
Anyway merging EAs code and doing the whole job on metatrader is surely the best thing to do but not always applicable if EA that you need to merge are too complex.
I think you might find this useful

Can I test 2 EA together in same strategy tester in one terminal?
- 2022.12.04
- Keith Watford
- www.mql5.com
Dear experienced traders, It seems not possible for me... Can I test 2 EA together in same strategy tester in one terminal...
Hi
You can always test them one by one on the tester using the same setup for test. Then you have two separate results, and you can compare them. When you merge the code you would have a sum of results together, so you would have to later separate the trades from one and other EA somehow.
Best Regards

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Looking at options for backtesting 2 EAs on the same data set at the same time (i.e. one EA that places orders, the other that opens/closes hedging positions).
Is there a way to backtest with both in action?
Thanks in advance
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