You can freeze the element you want to perform an action on (from “view device” after the pop up list is displayed) If your goal is to click on the element) by standing with your mouse over the element and double-clicking the Shift button.
Then select the tap action if your goal is to click on the element.
You might need to tap on a specific part of a mobile element (both Android or iOS), you can use the Tap element at relative point action.
If for example, you want to click here:
You can hover the wrapper element of the element you want to tap on, double shift to capture it, and select the “Tap at relative point” action, by providing the Horizontal tap percentage and the Vertical tap percentage (notice: it starts from the top-left corner of the element) you will be able to tap on a specific point on the wrapper element.
Here you can read more about it and find an example:
Please let me know if this is clear enough or you need more help.