STM32H745 launch STM32CubeMX option disappear in 'Manage Run-Time Environment' wizard

I find there is no more  launch STM32CubeMX  option in the RTE configuration wizard when selected STM32H745 device. But it sill exist for STM32H743. So, what's the reason? 

  1. MDK-ARM won't support the option any more (at least for 745 line)?
  2. It just hasn't been added for now, but will sooner or latter?

Thanks.

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