Do MT4 and MT5 support changes in leverage during backtesting?

 
Some brokers change leverage depending on the balance. Do MT4 and MT5 support this?
Does leverage automatically change and calculate as assets increase during backtesting?
 
Moebius-FX: Some brokers change leverage depending on the balance. Do MT4 and MT5 support this? Does leverage automatically change and calculate as assets increase during backtesting?

Yes, I have seen live accounts on some brokers that change leverage based on certain required conditions.

However, this is not reflected during back-tests which will simply be run a fixed leverage selected by the user.