Go to Record/Request/Page[Next] -- specify Next using the drop down menu in ScriptMaker
Go to Field[...] -- where "..." is what you specify in ScriptMaker
Mind you, I don't think the Go to Field step will work if you're not in a layout that contains/shows the field ... so set context in the script by using a Go to Layout script step before the Go to Field step
Let me know if the works, and correct me if I'm wrong ...
Set Field [gDateList,""]--gDateList is a global text field
Set Field[gDateList,gDateList & getastext(datefield)]
Go to next record [exit after last]
Alternatively you can use set variable instead of set field, depending on what you want to do.
Believe it or not, there once was a time when "Go to next record" with the exit after last option was the ONLY type of repetitive task you could script in FileMaker!