Interactive call to action Theme Elements required

Hi,

I want top add the following elements to our website that do not seem to be within the theme content elements.

1/ CTA (Call to action) sticky call to action / enquiry button that moves down the right of the screen on a desktop view.
2/ Pop up Light box that displays after xx minutes on the site with a CTA and an image.
3/ Request Callback button and action / Call Us button and action – prompts and action etc.
4/ Integration with Zoho forms?

Please advise if the above is possible with the theme, or plug-ins that may be required to achieve them