Select the Test Modes Button.
![](https://s3.amazonaws.com/assets.ralstonfieldlab.com/images/png/test_modes.jpg?mtime=20151230155154)
Select the Test Mode you wish to edit from the list in the left column.
![](https://s3.amazonaws.com/assets.ralstonfieldlab.com/images/png/_855xAUTO_fit_center-center_60/test_modes-select-test-modes.jpg?mtime=20151230155508)
Select the Edit Button.
![](https://s3.amazonaws.com/assets.ralstonfieldlab.com/images/png/edit-an-existing-test-mode-edit-test-mode.jpg?mtime=20170421122905)
Make the necessary revisions to the Test Mode.
![](https://s3.amazonaws.com/assets.ralstonfieldlab.com/images/png/edit_test_mode.jpg?mtime=20151230161751)
Save your changes.
If the Test Mode has already been added to FieldLab devices, selecting Save will prompt a notification that you need to Sync for the Test Mode revisions to be available on those devices. Instructions for doing so are here: Sync Test Modes
![](https://s3.amazonaws.com/assets.ralstonfieldlab.com/images/png/edit_test_mode-save.jpg?mtime=20151230161845)