Expandable menu and re-use best practices - SL2

Hi all,

I have a contextual menu, with a dropdown that I intend to reuse on a number of slides.

Previously, this has been implemented by use of duplicating slides, but I would prefer to introduce a template for this.

As the slide master does not support states, I have built this using placeholders, layers and multiple triggers. It works as follows:

1. Textbox placeholder on base layer
2. Picture for open/close on base layer
3. Textbox placeholder on second layer

The placeholder on the second layer cannot be edited and so, while fully functional, it is just a blank textbox when expanded.

Does anyone have a recommendation on how this could best be implemented? The issue is that the size of these textboxes may change too, so using placeholders allows this on the base layer.