You can change the horizontal or vertical offset of a gutter through its properties or by graphically moving the gutter.
To move a single gutter segment, select the gutter and drag it horizontally.
To move a multi-segmented gutter, you need to select the shape handle of the gutter. Place the cursor over the gutter and press Tab to highlight the shape handle. Watch the status bar to be sure you are highlighting the shape handle. Click to select the shape handle. Move the cursor left or right to change the horizontal offset. This affects the horizontal offset of all segments of the gutter, so that the segments are symmetrical.
Moving gutter on the left also moves gutter on the right
Select the gutter and drag it up or down. Note that if the gutter is multi-segmented, then all segments move up or down the same distance.
Gutter moving vertically in section