I was just thinking that is how the shortcuts should be.
Having to hold shift, ctrl and space for simple navigation like zooming and panning feels really cumbersome to use. This is especially important on desktop with mouse+keyboard.
I’m glad middle-click drag and right-click drag already work for panning. Those feel very natural and immediately discoverable compared to having to press extra keys.
To add, I think click-dragging an arrow to an empty spot should create a new card by default. Creating a new card shouldn’t require too many clicks.
But right-click dragging to an empty spot should show the context menu when you release it, and it lets you choose what to create at the end of the arrow, like left-click-drag currently does.