In my opinion, the intuitive position for these buttons would be at the bottom of the detail view. However, this means, even more buttons are drawn on top of the actual image, possibly obstructing the user's view onto the image, which means the user might need to move the image around.

Usually, I do not like the idea of control elements that disappear depending on the mouse position because they would not be accessible for mobile or tablet users. Maybe in this particular case, it makes sense to hide these buttons when they are not needed (if the mouse cursor is outside of the detail view)? Here is a demonstration:

@solth @andre-hohmann What do you think?

I think those disappearing buttons are appropriate. It's true that the metadata editor already has a lot of UI command components and buttons, but all of them serve some relevant purpose.

Perhaps we can consolidate the current number of UI elements in the future and group some buttons into menus like you did for the structure tree in the past or for the data editor settings in #6245 but for the moment these two new, disappearing buttons are a good solution, IMHO.