Details on Search and Replace <
Information about the section Search and Units <.
With this command you can search for words or strings in the texts of the whole drawing or in selected text objects and them replaced automatically or by selection.
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Search:, Replace by:
Defines the search term and the text or character string that is to replace the search term. You can use 
to pick up texts or character strings from the drawing.
Replace in
Total drawing: All Texts or character strings found are automatically replaced.
Auswahl: After activating the command, you can select the text objects to be replaced in the drawing.
Case sensitivity
Enabled: The search is case sensitive.