Hi Vadim, welcome to the community!
Currently, there is no way to adjust the image presentation of the player in Shotgun Create, other than to compare Versions with the difference mode. Thanks for letting us know that this is something you’d like to be able to adjust in your workflow.
While there is unfortunately nothing I can suggest to do this in Shotgun Create right now, you can launch the Version you are currently viewing in RV via the action menu (…) at the top left of the window, or via the context menu of any Version displayed in the panel to the right.
Regarding compare, Shotgun Create currently only facilitates comparing Version within the same Task. We have heard from many people like you that comparing outside of Tasks is something they’d really like to see and we’re actively looking into making it easier to do so in future.