Code editor button seems out of place

"Open code editor" tool button looks a bit lost and misplaced due to its current positon.

The current look:

My suggestions:
1. Either we can leave it where it is, allign it to the horizontal center and replace it with wide button with explicit "Open code editor" text, similar to "add/remove if/else statement". 

(or "Open Code Editor" could be moved under the code preview)

2. Or we can move it to the right bottom corner of the code preview pane. This way, it will never cover the first lines/first if statement of the action.