\chapter{musr\+Step} \hypertarget{index}{}\label{index}\index{musrStep@{musrStep}} musr\+Step allows to reset the \texorpdfstring{$<$}{<}step\texorpdfstring{$>$}{>} values of the msr-\/file after a fit which went wrong. For instance this this is necessary for high-\/field mu\+SR data, since these values might be too small for the next fit step.