FreeOffice: The command Insert document is not included in SoftMaker FreeOffice.
You can use the ribbon command Insert | Document 
to insert a complete TextMaker document into the current document.
Note: Object frames (for example, text frames, picture frames, etc.) will not be imported.
Proceed as follows:
| 1. | Move the text cursor to the position in the current document at which the other document is to be inserted. |
| 2. | Choose the ribbon command Insert | Document (in the group Text). |
| 3. | The program opens a dialog box in which you select the document to be inserted. |
| 4. | Confirm that it has been opened. |
The selected document will now be inserted.