Technical Manual

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Generate New Time Period: Move the mouse to the time you want,
pull the mouse while pressing its left button, and loosen the mouse to
generate a new time period.
Edit Time Period: Move the mouse to one end of the time period to
edit. When the cursor changes to
, move the mouse while pressing its
right button, and loosen the mouse to get the time period you want. In
addiction, you may double-click on the time period to modify to enter a
dialog box shown as the right picture on the right. Here, you can adjust
the beginning/ending time for this time period.
Move Time Period: Move the cursor of the mouse to the time period
to modify. When the cursor changes to
, move the mouse while
pressing its right button, and you may move the time period as a whole.
Delete Time Period: Move the mouse to the time period to modify.
When the cursor changes to
, move the time period to make it
disappear. Besides, you may click the time period, and press Del to
delete this time period.