Is there a NdLayout way to combine two NdLayouts instead of hv.Layout?
My current structure:
:Layout
.NdLayout.I :NdLayout [var]
:HoloMap [season,region]
:NdOverlay [exp]
:Overlay
.Curve.I :Curve
.HLine.I :HLine
.NdLayout.II :NdLayout [var,var]
:HoloMap [season,region]
:NdOverlay [tag]
:Overlay
.Curve.I :Curve
.HLine.I :HLine
example why I want them to be a flat NdLayout; if I call .cols(1), it creates a weird layout
import holoviews as hv
l1 = hv.NdLayout({'a': hv.Curve([0, 1, 2]), 'b': hv.Curve([5, 6, 7])}).cols(1)
l2 = hv.NdLayout({'d': hv.Curve([0, 1, 6]), 'c': hv.Curve([5, 6, 9])})
hv.Layout([l1, l2]).cols(1)