Link OmniOutliner iOS to Mail message

Good morning,

I am working on an outline using OmniOutliner 4 for Mac and OO3 iOS (iPhone 7, up to date OS)… In Mac OS, I am able to drag and drop mail messages over to OO3 which gives me a quick link over to mail message. Are there any mechanisms of creating a links between apps in OO3 (to Mail for example) for iOS?