How to alter object group width and size while maintaining coordinate location.

Hello! I am doing research using MATLAB and ran into a problem. When increasing "outline width of object" of rows of 4-object asterisks (composed of four lines) in CORELDRAW after transferring the objects from the MATLAB program, the lines are significantly enlarged and the asterisk shape is lost. Changing each individual object size and width fixes this shape issue without displacement, but takes forever. Trying to alter these asterisks as groups displaces the asterisks from their trendlines, which is not kosher. I can't seem to find an already published answer to this problem. Please let me know if any more information is needed to prevent this displacement. Thank you very much for your time!

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