Clarion Technologies,
Thank you for your suggestions. Of these, Popup Contact Form came the closest to what I want. However, it doesn’t offer any options for editing the form or the button.
Here is the page I’m currently working on
https://mystiquemarketing.net/marketing-consulting/
(Ideally I’ll create a separate form for each of my service pages as I build them.)
By reading other posts I was able to cobble together a popup form using Easy FancyBox and Custom Contact Forms. The problems I have with this solution are (a) I really don’t understand how Easy FancyBox works, I just copied and pasted some code I found,and (b) I still don’t know how to make it launch from a button instead of text. I Installed MaxButtons in hopes of solving that problem, but I can’t figure out how to make it launch the FancyBox.
I also tried Popup Maker, but when I try to set up the “trigger” it asks about cookies and css (of which I know nothing).
PopUp by Supsystic looks promising, but I don’t think it works with the Custom Contact Forms plugin.