diff --git a/oscillode/__init__.py b/oscillode/__init__.py
index bdefef1..5fc6ad3 100644
--- a/oscillode/__init__.py
+++ b/oscillode/__init__.py
@@ -18,9 +18,10 @@
 
 from functools import reduce
 
-# from . import node_trees
-from . import assets, operators, preferences, registration
 from . import contracts as ct
+
+# from . import node_trees
+from . import operators, preferences, registration
 from .utils import logger
 
 log = logger.get(__name__)
@@ -31,24 +32,21 @@ log = logger.get(__name__)
 ####################
 BL_REGISTER: list[ct.BLClass] = [
 	*operators.BL_REGISTER,
-	*assets.BL_REGISTER,
 	# *node_trees.BL_REGISTER,
 ]
 
 BL_HANDLERS: ct.BLHandlers = reduce(
 	lambda a, b: a + b,
 	[
-		assets.BL_HANDLERS,
 		operators.BL_HANDLERS,
-		assets.BL_HANDLERS,
 		# node_trees.BL_HANDLERS,
 	],
 	ct.BLHandlers(),
 )
 
 BL_KEYMAP_ITEMS: list[ct.BLKeymapItem] = [
-	*assets.BL_KEYMAP_ITEMS,
 	*operators.BL_KEYMAP_ITEMS,
+	# node_trees.BL_KEYMAP_ITEMS,
 ]
 
 
diff --git a/oscillode/assets/structures/arrays/array_ring.blend b/oscillode/assets/arrays/array_ring.blend
similarity index 100%
rename from oscillode/assets/structures/arrays/array_ring.blend
rename to oscillode/assets/arrays/array_ring.blend
diff --git a/oscillode/assets/converters/tdsphere_to_kp.blend b/oscillode/assets/converters/tdsphere_to_kp.blend
new file mode 100644
index 0000000..e771874
--- /dev/null
+++ b/oscillode/assets/converters/tdsphere_to_kp.blend
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:cd9c7551b9b3a3f2bbc1e1f66e2bffdbb18d2f50d2ba8c06b386400cb776ce26
+size 1252531
diff --git a/oscillode/assets/primitives/arrow.blend b/oscillode/assets/primitives/arrow.blend
new file mode 100644
index 0000000..3eb12a5
--- /dev/null
+++ b/oscillode/assets/primitives/arrow.blend
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b0185304c5d4a0de4768487f466507e20499a84c13a6f2a69b3f267c0173c22f
+size 826498
diff --git a/oscillode/assets/structures/primitives/box.blend b/oscillode/assets/primitives/box.blend
similarity index 100%
rename from oscillode/assets/structures/primitives/box.blend
rename to oscillode/assets/primitives/box.blend
diff --git a/oscillode/assets/structures/primitives/ring.blend b/oscillode/assets/primitives/ring.blend
similarity index 100%
rename from oscillode/assets/structures/primitives/ring.blend
rename to oscillode/assets/primitives/ring.blend
diff --git a/oscillode/assets/structures/primitives/sphere.blend b/oscillode/assets/primitives/sphere.blend
similarity index 100%
rename from oscillode/assets/structures/primitives/sphere.blend
rename to oscillode/assets/primitives/sphere.blend
diff --git a/oscillode/assets/structures/template.blend b/oscillode/assets/workspaces/asset_template.blend
similarity index 100%
rename from oscillode/assets/structures/template.blend
rename to oscillode/assets/workspaces/asset_template.blend
diff --git a/oscillode/assets/starter.blend b/oscillode/assets/workspaces/starter.blend
similarity index 100%
rename from oscillode/assets/starter.blend
rename to oscillode/assets/workspaces/starter.blend
diff --git a/oscillode/assets/__init__.py b/oscillode/node_trees/maxwell_sim_nodes/assets/__init__.py
similarity index 100%
rename from oscillode/assets/__init__.py
rename to oscillode/node_trees/maxwell_sim_nodes/assets/__init__.py
diff --git a/oscillode/assets/examples/sio_waveguide.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/examples/sio_waveguide.blend
similarity index 100%
rename from oscillode/assets/examples/sio_waveguide.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/examples/sio_waveguide.blend
diff --git a/oscillode/assets/geonodes.py b/oscillode/node_trees/maxwell_sim_nodes/assets/geonodes.py
similarity index 100%
rename from oscillode/assets/geonodes.py
rename to oscillode/node_trees/maxwell_sim_nodes/assets/geonodes.py
diff --git a/oscillode/assets/internal/monitor/_monitor_eh_field.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/eh_field.blend
similarity index 100%
rename from oscillode/assets/internal/monitor/_monitor_eh_field.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/eh_field.blend
diff --git a/oscillode/assets/internal/monitor/_monitor_permittivity.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/permittivity.blend
similarity index 100%
rename from oscillode/assets/internal/monitor/_monitor_permittivity.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/permittivity.blend
diff --git a/oscillode/assets/internal/monitor/_monitor_power_flux.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/power_flux.blend
similarity index 100%
rename from oscillode/assets/internal/monitor/_monitor_power_flux.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/monitor/power_flux.blend
diff --git a/oscillode/assets/internal/simulation/_simulation_sim_domain.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/simulation/sim_domain.blend
similarity index 100%
rename from oscillode/assets/internal/simulation/_simulation_sim_domain.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/simulation/sim_domain.blend
diff --git a/oscillode/assets/internal/source/_source_gaussian_beam.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/gaussian_beam.blend
similarity index 100%
rename from oscillode/assets/internal/source/_source_gaussian_beam.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/gaussian_beam.blend
diff --git a/oscillode/assets/internal/source/_source_plane_wave.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/plane_wave.blend
similarity index 100%
rename from oscillode/assets/internal/source/_source_plane_wave.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/plane_wave.blend
diff --git a/oscillode/assets/internal/source/_source_point_dipole.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/point_dipole.blend
similarity index 100%
rename from oscillode/assets/internal/source/_source_point_dipole.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/source/point_dipole.blend
diff --git a/oscillode/assets/internal/structure/_structure_primitive_box.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_box.blend
similarity index 100%
rename from oscillode/assets/internal/structure/_structure_primitive_box.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_box.blend
diff --git a/oscillode/assets/internal/structure/_structure_primitive_cylinder.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_cylinder.blend
similarity index 100%
rename from oscillode/assets/internal/structure/_structure_primitive_cylinder.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_cylinder.blend
diff --git a/oscillode/assets/internal/structure/_structure_primitive_ring.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_ring.blend
similarity index 100%
rename from oscillode/assets/internal/structure/_structure_primitive_ring.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_ring.blend
diff --git a/oscillode/assets/internal/structure/_structure_primitive_sphere.blend b/oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_sphere.blend
similarity index 100%
rename from oscillode/assets/internal/structure/_structure_primitive_sphere.blend
rename to oscillode/node_trees/maxwell_sim_nodes/assets/nodes/structure/primitive_sphere.blend