scn you just use VisGroups to show more or less spectators depending on the session. If you want to have different spectators for different sessions (free practice, qualifying and race), when you make the blocks, mix the spectators and use different material names for them doing this, before saving the model in the last point (as explained above) you can simply filter materials and copy paste the faces of each material in three tabs and then saving three models insted of one. Finnally delete the object (the stand itself) and what you have is a model of spectators to fit in the stand, and you can save this model and add it to your.

Then open the block you've just saved, so you can edit its faces, and add the stand as an object delete the spectators outside the stand just selecting them and deleting selected faces (each spectator is just one face), and if you want and the stand have stairs, gates or areas where no spectators should be, delete them too. Once the block fits the stand, export it as a new object and close 3dSimEd. Then open your track in 3dSimEd, locate the stand, and copy the coordinates where the lowest left spectator should be on this stand add object (the block you made) and paste the copied coordinates, and then you can rotate the block to fit in the stand you can change the pitch and increase the Y size of the object to fit in the stand rows don't worry if spectators look sloped, as they will be straight later, just pay attention to their feet staying on the rigth position on the stand, and don't worry if there are more rows or columns with spectators than the stand size, you'll delete them later.

You can have different blocks for different purposes. If you want to quickly poblate a stand with billboard crowd, first prepare a block of spectators in 3dSimEd, big enough to cover the stand use as many rows as needed and move it to have the lowest left spectator on coordinates 0,0,0, set pivot point to 0,0,0, align the block to the X axis and save it.

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