We distribute a daily market commentary newsletter that sometimes includes graphs and/or charts. We have limited space, so these tend to be fairly small and hard to view. Is there a simple way of being able to include them such that, when clicked on, they expand? Thanks in advance!
You mean in emails ?
If so, it's difficult because it would rely on the capabilities of the email clients, most of which are limited and will not support this type of features.
On landing pages, it is feasible, but it has to be coded on your landing page.