How do I Setup the surfaces for the following lithologies?

Hey There!
I am very new to Leapfrogs and I don't quite unterstand how to setup the lthology or the surfaces in Leapfrog works.

I tried setting it up with all deposits, then i tried sand a the main deposit and the multiple layers as veinsystems. Tried making Intervals, and so on.

In the screenshot you can see, that it looks all wrong: The very top layer is not there even though it has a surface.

grafik.png

I also wnat to setup the maximum distance of the pinchout. and also would like to edit the surfaces, because it look s all wrong and doenst make sense.

second screenshot:
here the purple layer is just coming from the blue one and going all the wqay to the surface.

the blue and grey layer on the right justpinch out way too much.
how can i fix this?

grafik.png


third screenshot:
I need the surfaces to be exactly the boundaries given in the drillign data. when i set snapping to drilling only, these spikes /dimples appear, to connect to the boundary. why is it doing that?

grafik.png


i think i have a lot more questions, but these are the main roadblocks right now…
thanks!