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Give the dimensions of the so-called coupling beam at least 300 mm.
Select coupling beam, coupling beams
Enter the properties.
In the general tab, give the width and height at least 300 mm and click the OK button.
...
...
Give the dimensions of the so-called coupling beam at least 300 mm.
Select coupling beam, coupling beams
Enter the properties.
In the general tab, give the width and height at least 300 mm and click the OK button.
...