When you open the program, it will be useful for you to import your dwg files from the Project/New 2D Window to this workspace, and copy and paste the necessary parts from the 2D Window you opened while making your drawings on your floor plans to the floor plans. The imported file may have come far (if it is drawn too far from the center, it says zoom limits are exceeded.), these are the coordinates you work with in your other drawing program. While creating the drawing in ideCAD, it is important that the drawing coordinate is close to the origin (zero to zero) point, since all 3 dimensions are created during the plan drawing. Go to the "Move" command, select your drawing, click the right mouse button, give a base point, type 0,0 on the keyboard and press enter. Move the drawing to the origin. Measure your drawing with the "Distance" command on the left vertical toolbar. If there is a scale difference, go to the "Scale" command in the upper horizontal toolbar. Select "Scale by reference". For example; If we want to make it 100 times smaller, type 100 in the first value and enter 1 in the second value. (Make 100 by 1. You could say make 40 by 7, you could say make 65 by 130...) After the drawing is moved to the origin and scaled; You can prepare the drawing as a single piece from the Modify/Block command. This can be used as a base for your drawing. You can change the drawing thickness and color by double-clicking on the block with the left mouse button. Create a new layer called "underlay" by going to Layer Settings/New. Go to the Change object layer command, click on the block drawing you created and switch its layer from standard to base. After changing the layer of the drawing you have blocked, you can easily create your drawing by locking this layer (you can see the drawing when it is locked, but no change or selection can be made on it) by referencing it.