--- a/src/SbpOperators/volumeops/derivatives/first_derivative.jl	Tue Mar 15 06:53:06 2022 +0100
+++ b/src/SbpOperators/volumeops/derivatives/first_derivative.jl	Tue Mar 15 07:29:41 2022 +0100
@@ -1,5 +1,3 @@
-export first_derivative
-
 """
     first_derivative(grid::EquidistantGrid, inner_stencil, closure_stencils, direction)
 
@@ -12,11 +10,22 @@
 On a one-dimensional `grid`, `D1` is a `VolumeOperator`. On a multi-dimensional `grid`, `D1` is the outer product of the
 one-dimensional operator with the `IdentityMapping`s in orthogonal coordinate dirrections.
 
-See also: [`SbpOperators.volume_operator`](@ref).
+See also: [`volume_operator`](@ref).
 """
 function first_derivative(grid::EquidistantGrid, inner_stencil, closure_stencils, direction)
     h_inv = inverse_spacing(grid)[direction]
     return SbpOperators.volume_operator(grid, scale(inner_stencil,h_inv), scale.(closure_stencils,h_inv), odd, direction)
 end
-first_derivative(grid::EquidistantGrid{1}, inner_stencil, closure_stencils) = first_derivative(grid,inner_stencil,closure_stencils,1)
+first_derivative(grid::EquidistantGrid{1}, inner_stencil::Stencil, closure_stencils) = first_derivative(grid,inner_stencil,closure_stencils,1)
+
+"""
+    first_derivative(grid, stencil_set, direction)
 
+Creates a `first_derivative` operator on `grid` along coordinate dimension `direction` given a parsed TOML
+`stencil_set`.
+"""
+function first_derivative(grid::EquidistantGrid, stencil_set, direction)
+    inner_stencil = parse_stencil(stencil_set["D1"]["inner_stencil"])
+    closure_stencils = parse_stencil.(stencil_set["D1"]["closure_stencils"])
+    first_derivative(grid,inner_stencil,closure_stencils,direction);
+end