Adding iFrame & hyperlinks

Hi

In Restaurant Manager we are unable to add a iframes within the editor and it will not allow hyperlinks. The option is there to link text but does not work. The editor keeps stripping the code. I have checked the TinyMCE and also Joomla text filters. In modules I am able to add iframe via wrapper so does not appear to be site wide.

We need to add iframes for each restaurant profile for booking widgets. We would also like to create a new tab in the details which holds the booking widget, is this possible? prntscr.com/lg837e

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