This activity is used to simulate a click on the specified coordinates of the screen. The starting point is the top left corner of the screen, (0,0) coordinates.
Usually clicking on coordinates is used when more traditional and stable methods do not work. Setting coordinates 'as is' (or 'absolute' coordinates) is not a stable method as well because even a slightest change of the position of the target element can lead to clicking on a wrong element.
It is a good practice to use the so called 'relative' coordinates. It means that you can find an "anchor" - an element that is pickable through Desktop Picker - then get its position using the 'Get position' activity, then and then use those coordinates to dynamically calculate the distance to the target element.
The idea is that the distance between this stable element and the target element is changed quite rarely. For example, the distance between the main Notepad window and the 'File' button inside will hardly ever change.
There are two main parameters: x and y. They define the position of the element you are going to click. You can either set them manually or pinpoint the position by clicking the 'Set the coordinates' button. In this case you will be able to place the cursor at the desired spot of the screen and select it by holding the Ctrl key and left clicking it.
The parameters that define the spot coordinates
This message will appear in the top right corner of the screen when using the 'Set the coordinates' feature
These are the other parameters: Right click, Double click, Wait before, sec and Wait after, sec. They define the behavior when clicking the point and the amount of time that will pass before or after clicking it respectively.