How to save hostname / website url as variable to another Object repos

How to save hostname / website url as variable to another Object repos ex. https://{hostname}/endpoint
so when we change to prod env we can change only 1 place to test api

Hi @wpchagorns,
You can use global variable to define your url. Please refer to https://docs.katalon.com/katalon-studio/docs/global-variables.html for more detail.
Regards.