Validar sheets no app

[ABG]

@Taifun

@eduardo_cardoso_juni

is collected in the app, following the model of the app

See sample code at

Logging Marathon Runner Checkpoints in Google Sheets

This app has three Screens, in order of complexity: Screen1, a doorway to the other Screens scrTrackRunners, to log arrival time of runners at checkpoints ScrRegister, to set up new runners, their bar codes, and a summary line of their arrivals. Screen1 [Designer Screen1] [Screen1 blocks] scrTrackRunners [Designer scrTrackRunners] The runner tracking screen is meant to be used by multiple people, each standing at one of the Locations that runners must pass. At screen startup, the runn…

near the end.