When Signature is selected it will show as button with the label text on it and once clicked it will have a popup where the signature can be entered and a name.
If more than one signature is required against a time entry, add in more checklist items for signatures.
Enter in details to the Help field to assist users in TimeTrak Mobile to understand the requirements of the signature.
Tick on the Required check box to force the users to fill in the checklist item.