Layer tagging can be used when something needs to be tagged multiple times. A common situation would be when a Mandatory text tag would be when the tags ifrs-full:DomicileOfEntity and ifrs-full:CountryOfIncorporation are the same.
Trying to reselect the same information twice will be indicated by a red strike-through when highlighting the text or table.
You can carry this out by creating a new layer. Start by going to the Options menu and clicking Layer Manager.
The Window below will open. You can click Add and Apply to add the layer.
If you add more than one layer, you can set their order with the up and down arrows on the right hand side of the window.
In the Preview mode, you can select the layer you are working in with the drop down menu below.