You can create very interesting effects by panning the dry signal to one side of the stereo image and the effect to the other side, for example the dry sound on the left and a delay to the right. More exotic possibilities exist, like different equalizer settings for left and right, or reverb on one side only. On some records from the 1960's and 70's producers even put the drums on one side of the stereo image.
While there is no dedicated parameter for doing this in the G-Force there are still a few ways to make it happen.
Input signal panning
With external hardware:
If you connect either a stereo volume pedal with a balancer function, a mixer or some other gear with panning (or just separate level) controls before the G-Force (with I/O Setup > Audio set to Stereo Input) you get the ability to pan the input signal before it even enters the G-Force.
If I/O Setup > Audio is set to Stereo Input but you only use the left input jack, the input signal will always be panned hard left (if you only use the right input jack there'll be noise/hum from the unused left input jack).
With effect parameters:
In the Delay block, use the Pan parameters with Delay time set to zero.
In the Pitch Shift block, use the Pan controls with Pitch set to zero. Note that the Pitch Shift produces a slight detune effect even with zero Pitch.
In the Surround Panner, use the Pan Center parameter with Speed turned off (software version 1.12 and higher). The Width parameter should be set to zero, otherwise the pan position could change when the G-Force is turned off.
Using any Panner, let it pan left and right until it reaches a position you like, then turn off Speed quickly. This can be done with an expression pedal linked to the Speed parameter. The pan position may not be preserved when turning off the G-Force.
Output signal panning
With external hardware:
If you connect either a stereo volume pedal with a balancer function, a mixer or some other gear with panning (or just separate level) controls after the G-Force, you can pan the output signal after it has left the G-Force.
With effect parameters:
Rout the Dual Delay after the effects you want to pan, set its Delay times to zero and its Pan parameters to hard left and right. Now you can pan effects routed before the Delay with its two Line levels. If you control these parameters with an expression pedal, make the two Link response curves mirror images of each other (when one goes up the other goes down).
Use the Advanced Tremolo with LFO Phase set to 180 degrees, and turn it off at the right moment. This can be done with an expression pedal linked to the speed parameter.