What is the purpose of ‘Use relative path for image’ in Object repository?

What is the purpose of the checkbox ‘use relative path for image’ in object repository

It is used for Image handling keywords. Relative path is within project, so if absolute path is C:\Katalon\YourProject\img\test.jpg, relative path would be img\test.jpg

https://docs.katalon.com/display/KD/[WebUI]+Verify+Image+Present

https://docs.katalon.com/display/KD/[WebUI]+Wait+For+Image+Present

@Marek_Melocik, in ios tests i can’t select images, they are impossible to select, why?