When you translate in document mode and open a TU, if the TM search shows positive results, this can be a typical result:
Here, two TM segments with their translations are presented at the bottom. The source segments are placed in the light yellow sub-boxes while their translations are placed in the white sub-boxes.
The segment comparison is active, and the identical sub-segments are numbered (see TM Search Results Options). The source segment numbering in the upper box refers to the first TM segment below.
You can now decide whether you want to go ahead with one of these TM segments and edit it.
If you do not want to use any of the TM segments, you
can simply delete the content of the translation box by clicking on the 
icon on the toolbar, or by clicking in
menu command: MetaTexis | Copy and delete | Delete translation (default
shortcut: Alt+Shift+Delete).
To select one of the TM search results as the basis for the translation:
1. Place the cursor in the TM translation or TM source segment that you want to use.
2. Click the 
icon on
the toolbar, or click the menu command: MetaTexis | Translation memory (TM) |
Select translation (default shortcut: Alt+Shift+Return).
When you execute the Select translation command, the translation box is cleared except for the selected translation, as shown below:
Alternatively, you can execute the Select translation stepwise command (default shortcut: Alt+Ctrl+Shift+Return). If there is only one TM result, there is no difference in the behavior. However, if there are two or more TM results, in the first step only the non-relevant TU from the TM are deleted, while the source segment of the selected TU is still visible for comparison purposes, as in this case:
Now the translation can be edited conveniently, because both the source segment and the TM source segment are there, and the differences and similarities are shown. Here, the difference is in the second word of each segment: The translation of "wants" has to be replaced with the translation of "loves".
When you execute the Select translation stepwise command again, the TM source segment is deleted and only the translation is kept, as shown here:
You can now go on to another segment in the document by executing one of the navigation commands.
Note: You can go on to another TU at any time (not only when you think the translation of the current segment is finished). The current state is preserved, and you can come back to this segment at a later stage.