3dLME should automatically generate F-statistics for main effects and interactions. So you don't need to make any request. Plus the following two lines are incorrect and unnecessary:
Group*Conditions
PD*Cond
Also you have a simple design, and can be easily analyzed with 3dMEMA or 3dttest++ without using 3dLME. See more discussion here:
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afni.nimh.nih.gov]
Gang