This task explains how to get contextual help on the
current command.
Select
Help > "ProductLine"
V5 Help, or press F1 (where "ProductLine" stands for
the brand you have installed, for instance
CATIA).
For example, if you are using the
Edge Fillet command, the
online help library is displayed in HTML format in a Web browser window,
at the topic explaining how to use the Edge Fillet command:
There is always one current active command (by default,
the Select command) whose icon is highlighted. This is the
command whose help is displayed when
F1 is pressed.
However some commands can be executed without changing the
current command (for example Tools > Image > Capture...).
Contextual help gives the priority to the last of these
commands that has been started and is still running rather
than to the current active command, otherwise it would not be
possible to get help for such commands.