Hello @花茶鱼i
Thank you for the suggestion.
That's an interesting idea! Having this type of cross axis like in Blender would indeed help for full tablet experience.
That being said, we're trying to keep the 3D view (and the UI in general) as light as possible, so we'll have to discuss about it. In addition, most tablet users are also working with the keyboard or tablet keys.
I'm not saying we're not gonna add this feature, I'm saying there're reasons to challenge it.
Best regards,