This procedure is handy to deal with segments that have 'complex' combinations of letters and numbers (e.g. in tables of content), but that can be sorted alphabetically easily.
Steps:
Choose Filter > Sort alphabetically
Note the range of the segments that you want to lock (e.g. 1-7).
Open the Find & Replace dialogue box. Since the sorting already uses a filter, you have to select Multiple filter(s).
Select the Segment numbers checkbox.
Type the desired range in the Find box.
Choose the Project source segments scope in the Default scope group.
In the filtered view, choose Task > Transfer source segments to target segments.
While still in the filtered view, choose Task > Lock segments, to make sure that the segments won't get modified.
Close the filtered view by clicking on the Filter funnel symbol.
alwayslockyourbike
The third episode of this series will use segment sorting to handle invariant segments (segments that don't need to be translated).
Soon to be released ...