When editing a flow, if the 'description' of a flow step, step is longer than 5 to 6 lines, the remaining content is hidden and can only be viewed through interaction with a scrollbar. This behavior makes it challenging to work with descriptions that span more than the line limit, such as sample JSON for a message between two components.
It would be preferable to have the field expand to the size its content similar to how it behaves when 'Playing' the flow. If the content is of the description field so long that it would extend beyond the available screen space, then it is preferable that visual cues for the steps before/after are shown, and that the remainder of the text is made available via scrollbar.