how to create a coordinate zone with 4 points, for the purpose of making a timesheet application, if a person is located at a predetermined timesheet, then he is automatically saved, if someone is not located at a location determined by the timesheet...

how to make the coordinate points other than the specified place he can not be accessed or sto, tksred

how to make time, like server time, in condition when he before use/open appsheet he can edited the time in setting device… who can teach me about that ?

how to make the clock or date in the server, so that the time and date cannot be edited when the user uses the appsheet application

how to determine the name of the day that is obtained from the date, e.g. 02/11/2019 Saturday 03/11/2019 Sunday