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You can specify the default values of of recordStateChange, recordValueChange recordValueChange, and and recordTimestamp through through the Project/Environment Options dialog. The value in the environment options will be the project options will be used instead when the tagged values of the sequence diagram generator is not specified. The default values of these environment options are true these project options are true, true, and false (see the following figure). True means means all values will be recorded by default.
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