Sequence numbering change options
Sequence numbering option: if the document gets removed, the next document created from template takes the number of the removed document (not the following one).
Yana Martynenko commented
Sequence numbering: the option to set sequence from the beginning for each template.
Example: I set the sequence Quote for template A and create a document Quote 1. Then I set the same sequence to template B and still getting Quote 1 document.