SMALL ALTERATION ON DWG FILE- AUTOCAD- SHORTED BALCONY BY 1Meter

I am looking for a freelancer with expertise in AutoCAD to make a small alteration on a dwg file. The alteration needed is to shorten the balcony by 1 meter. This project should not take longer than an hour for an experienced freelancer. AutoCAD is the required software for this project and the freelancer must be proficient in using it. The alteration should result in a decrease of the balcony length by 1 meter. I am looking for timely completion of the project, with high-quality results.