tySplineMesher extrude direction

[usc001]

hello,
unsure if this is a silly question/impossible:

how can i change the extrude direction of tySplineMesher in "extrude" mode? 

by default, it extrudes upwards but i would like to have it extrude sideways/outwards. 
i dont seem to get a clean sideways extrusion by changing the normal values in "direction" rollout. 
common 3ds max ways of changing the (spline) objects orientation (edit pivot only; change xform etc) dont seem to work either. 

is there an easy way to change the extrude direction?
thank you in advance!

[tyFlow]

I'm not sure I understand what the issue is - you can change the extrusion vector to control the direction, yes.

[usc001]

sorry for the confusion.

what i meant by "extrude" sideways is similiar to adding shell modifier. 
Where it creates a uniform thickness outline. 

I guess, what i mean is to use the "spline vertex normals" for the direction? 
Because i understand that "x=1" is not what im after...

additionally, the reason i want to do it inside of "tySplineMesher" modifier is, that i could use the "segment" spinner in the modifier to get uniform quads very easily.
i hope this makes more sense...

[tyFlow]

Set the extrusion mode to "tube" and set number of tube sides to 2 and you'll get the same result.