If you want to execute 5 different scripts one by one, then please do the following:
Go to Script - Script Properties - Script Assets - Scripts. Now click the Add button and add the required scripts(say 5 diff scripts) and click Apply and press Ok.
Now, in the tree view of OpenScript,right click on Run - Add - Other - Expand General node - Select Run Script and click Ok.
Now in the new window that appears click on the required script and click Ok.
Similarly add the required scripts and execute.