In Hero v2 you can add a click tag easily. Go to the settings section of the Hero panel. There you find the "Add click tag" option. Click the checkbox to enable the click tag input field. The following video demonstrates this.
This feature requires Hero Pro.

Creating additional size variations of an artboard/scene in Hero v2 is easy. Before creating the different variations make sure you have activated the "Responsive Resize" layout option for all relevant elements within the main artboard. When everything is set up select the main artboard and then click the "Create Size Variations" button in the Hero panel. In the variations dialog you can choose a set of size variations you want to create. Use the presets or define custom sizes. When you click "Create Variations" the main artboard will be duplicated and resized as requested. The following video demonstrates this.

Hero helps you to be faster with new animation transfer functions – basically copying and pasting animation choreographies from one element to another. This is also useful to recreate animations in multiple variations. With Time Shifter you can easily adjust the start time for all animations on one element.
The following video demonstrates both features.
Transfer Animations requires Hero Pro.

If you are creating longer and more complex animations you can split up the entire composition into multiple scenes. You can use XD's prototype mode to define which scene should be played when a scene reaches the end. You simply connect scenes with XD's prototype wires using "time" triggers. The following video demonstrates this. (Multi-scene projects can currently only be export as "All-in-One" projects)

During export you have two options: "All-in-One" exports all scenes as one project with support for multiple scenes. The second option "Multiple standalone projects" exports all artboards as multiple independent projects (single scene projects). This can be useful for banner ad size variations. "Multiple standalone projects" currently does not support multiple scenes. This will be added in a future version.

The Companion desktop app helps you export your compositions as video (mp4). Companion App is still in beta.
Hero Companion