diff --git a/src/greenfunction.jl b/src/greenfunction.jl
index 59049552..06786afc 100644
--- a/src/greenfunction.jl
+++ b/src/greenfunction.jl
@@ -112,8 +112,8 @@ sites_to_orbs(c::CellSites{<:Any,<:Union{Symbol,AbstractUnitRange,Integer}}, g)
     CellOrbitals(cell(c), flatrange(hamiltonian(g), siteindices(c)))
 sites_to_orbs(c::CellOrbitals, g) = c
 # fallback for cases where i and j are not *both* contact indices -> convert to OrbitalSlice
-sites_to_orbs(::Colon, g) = orbsdict(contactorbitals(g))        # reads ContactOrbitals
-sites_to_orbs(i::Integer, g) = orbsdict(contactorbitals(g), i)  # reads ContactOrbitals
+sites_to_orbs(::Colon, g) = cellorbsdict(contactorbitals(g))        # reads ContactOrbitals
+sites_to_orbs(i::Integer, g) = cellorbsdict(contactorbitals(g), i)  # reads ContactOrbitals
 
 Base.getindex(g::GreenSolution, i::OrbitalSlice, j::OrbitalSlice) =
     mortar((g[si, sj] for si in subcelldict(i), sj in subcelldict(j)))
diff --git a/src/types.jl b/src/types.jl
index aff70ec9..899a139c 100644
--- a/src/types.jl
+++ b/src/types.jl
@@ -1862,23 +1862,23 @@ end
 
 #region ## API ##
 
-orbsdict(c::Contacts) = orbsdict(c.orbitals)
+cellorbsdict(c::Contacts) = cellorbsdict(c.orbitals)
 
-orbsdict(c::ContactOrbitals) = c.orbsdict
-orbsdict(c::ContactOrbitals, i) = c.corbdict[i]
+cellorbsdict(c::ContactOrbitals) = c.orbsdict
+cellorbsdict(c::ContactOrbitals, i) = c.corbdict[i]
 
-# orbital size of merged contacts or specific contact
-flatsize(c::ContactOrbitals) = last(siteoffsets(c))
-flatsize(c::ContactOrbitals, i::Integer) = length(contactinds(c, i))
+# # orbital size of merged contacts or specific contact
+# flatsize(c::ContactOrbitals) = last(siteoffsets(c))
+# flatsize(c::ContactOrbitals, i::Integer) = length(contactinds(c, i))
 
-unflatsize(c::ContactOrbitals) = length(siteoffsets(c)) - 1
+# unflatsize(c::ContactOrbitals) = length(siteoffsets(c)) - 1
 
-siteoffsets(c::ContactOrbitals, i...) = siteoffsets(orbslice(c), i...)
+# siteoffsets(c::ContactOrbitals, i...) = siteoffsets(orbslice(c), i...)
 
 # flatrange(c::ContactOrbitals, iunflat::Integer) =
 #     siteoffsets(c, iunflat)+1:siteoffsets(c, iunflat+1)
 
-orbranges(c::ContactOrbitals, contact...) = orbranges(orbslice(c, contact...))
+# orbranges(c::ContactOrbitals, contact...) = orbranges(orbslice(c, contact...))
 
 # function subcellindex(c::ContactOrbitals, cell::SVector)
 #     for (i, cell´) in enumerate(c.cells)