What is the gray area at the start of the traces? December 13, 2023 02:35 Updated This represents the area of noise at the start of the trace that should be ignored. It can be adjusted for individual documents by dragging its right edge, or for all selected documents by clicking the ‘set trim' button in the toolbar. Related articles Geneious Prime doesn’t recognise my ladder - how do I fix it? What is the Locus Document? Getting started with microsatellites in Geneious Prime Where can I find the manual for the Microsatellites plugin? What dyes does Geneious Prime recognise?