@Andrewstructure
In RISAFloor, if you have a structure drawn to project grid lines and you decide that a grid line needs to be changed(as well as all the members drawn to it) you can easily do so from within the Project Grid spreadsheet by just adjusting the coordinates for the subject grid. Some people like this behavior while others do not want the model to be attached to their grids. If you want to move grid lines without moving any portion of your model, there is a check box in the upper right hand corner of the Project Grid spreadsheet that says "Detach Model". This check box was added in when RISAFloor went back to the same behavior it previously had of having the model attached to the grid lines. As @JoshPlum had stated, many customers voiced their preference for the model to be attached to the grids, so RISA listened and made the change back to the way it was in previous versions. But to keep both sides happy, the check box was added for flexibility. This behavior(and the check box) was included in version 12.0.0 of RISAFloor which was released at the beginning of October, 2017. We base our new features and enhancements on user requests, so as @JoshPlum stated, email us your suggestions.