Anchors
An anchor can be used to control the position of a frame in a document if other frames are modified or page dimensions change. For example, if the Auto Grow feature is used (see “Text Tab”) to change the dimensions of a frame or if an action is used to change its position, anchors can be applied to maintain the initial alignment.
Anchor settings
Use the cross to indicate on which side you want to align. You can align multiple sides of the frame with one or more frames.
Target
The component type to anchor the frame to:
Page: the page dimensions
Frame: another frame
Text
Frame
A list of all the tagged frames in the document.
Point
The point for aligning the frame with the target frame: Left, Right, Top, Bottom, Center X, Center Y
Offset
A distance for offsetting the alignment.
Min./Max.
Minimum and maximum values to the alignment point.
To anchor frames 
1 First you need to tag the target frame (e.g. Frame 2) that you want to anchor to. This is done in the Object Location panel. Select the target frame and in the Object Location panel of the Objects tab, enter a name in the Tag box. You need to be in Frame Edit mode.
The new frame tag will appear in the Frame drop-down list in the Anchor panel.
2 Select the frame you want to anchor (e.g. Frame 1) and specify how you want to anchor it in the Anchors panel: see Anchor settings.
doc. version 6.0.4