Thank you both for your replies. I will look into both options.

<t>Hi all,<br/>
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First post! Looks like a great app!<br/>
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Is it possible to create a sloping block, that slopes on both the X and Y axis. i.e. My land drops 0.7m right to left, but also drops 2m from front to back.<br/>
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I have drawn four sloping walls that represent the sides of the ...