changes

1) pasing ID references
2) bugs in create_entities, where number of representations couldn't be updated
3) by_id node updated to current workflow
... other small fixes

src/ifcsverchok/nodes/ifc/by_id.py

@@ -20,6 +20,7 @@
 import bpy
 import ifcopenshell
 import ifcsverchok.helper
+from ifcsverchok.ifcstore import SvIfcStore
 from bpy.props import StringProperty
 from sverchok.node_tree import SverchCustomTreeNode
 from sverchok.data_structure import updateNode
@@ -28,21 +29,21 @@ from sverchok.data_structure import updateNode
 class SvIfcById(bpy.types.Node, SverchCustomTreeNode, ifcsverchok.helper.SvIfcCore):
     bl_idname = "SvIfcById"
     bl_label = "IFC By Id"
-    file: StringProperty(name="file", update=updateNode)
-    id: StringProperty(name="id", update=updateNode)
+    id: StringProperty(name="Id(s)", update=updateNode)
 
     def sv_init(self, context):
-        self.inputs.new("SvStringsSocket", "file").prop_name = "file"
         self.inputs.new("SvStringsSocket", "id").prop_name = "id"
-        self.outputs.new("SvStringsSocket", "entity")
+        self.outputs.new("SvStringsSocket", "Entities")
+
+    def draw_buttons(self, context, layout):
+        layout.operator("node.sv_ifc_tooltip", text="", icon="QUESTION", emboss=False).tooltip = "Get IFC element by step id. Takes one or multiple step ids."
 
     def process(self):
-        self.sv_input_names = ["file", "id"]
-        super().process()
-
-    def process_ifc(self, file, id):
-        self.outputs["entity"].sv_set([[file.by_id(int(id))]])
-
+        self.ids = self.inputs["id"].sv_get()
+        print(self.ids)
+        self.file = SvIfcStore.get_file()
+        self.entities = [self.file.by_id(step_id) for step_id in self.ids]
+        self.outputs["Entities"].sv_set(self.entities)
 
 def register():
     bpy.utils.register_class(SvIfcById)