labfolder offers users two apps that allows for data validation, Sign & Witness and Signature Workflows. While the free in-ELN Sign & Witness function allows you to sign and request 1 more witness, Signature Workflows is a paid add-on to the labfolder Advanced Version, designed to create complex validation workflows including multiple witnesses and the option to comment on approval or rejection actions.
Reuse an entry with Sign & Witness
No, after signing an entry using the Sign & Witness app, the entry itself cannot be modified anymore.
However, if you want to further work on your study and continue notes in a signed entry, you may
Open the signed entry and click on the gearwheel at its top-right corner.
Select Copy to end in the dropdown menu.
Scroll down to the bottom of the page, you will see an identical entry except the changed created date and the disappeared signature. You can now modify the duplicated entry.