scripts-blender/addons/brushstroke_tools/ops.py

@@ -83,7 +83,14 @@ class BSBST_OT_new_brushstrokes(bpy.types.Operator):
         brushstrokes_object = self.new_brushstrokes_object(context, name)
         flow_is_required = settings.brushstroke_method == 'SURFACE_FILL'
         if flow_is_required:
-            flow_object = self.new_flow_object(context, utils.flow_name(name))
+            flow_object = None
+            if settings.reuse_flow:
+                if settings.context_brushstrokes:
+                    bs = bpy.data.objects.get(settings.context_brushstrokes[settings.active_context_brushstrokes_index].name)
+                    if 'BSBST_flow_object' in bs.keys():
+                        flow_object = bs['BSBST_flow_object']
+            if not flow_object:
+                flow_object = self.new_flow_object(context, utils.flow_name(name))
 
         # attach surface object pointer
         if surface_object:

scripts-blender/addons/brushstroke_tools/settings.py

@@ -171,6 +171,9 @@ class BSBST_Settings(bpy.types.PropertyGroup):
     ui_options: bpy.props.BoolProperty(default=False,
                                        name='UI Options',
                                        description="Show advanced UI options to customize exposed parameters")
+    reuse_flow: bpy.props.BoolProperty(default=False,
+                                       name='Re-use Flow Object',
+                                       description="Re-use flow object from active brushstrokes if applicable")
 
 classes = [
     BSBST_socket_info,

scripts-blender/addons/brushstroke_tools/ui.py

@@ -156,6 +156,7 @@ class BSBST_PT_brushstroke_tools_panel(bpy.types.Panel):
                 new_advanced_panel.label(text='Curve mode does not support drawing on deformed geometry', icon='ERROR')
             
             new_advanced_panel.prop(settings, 'assign_materials')
+            new_advanced_panel.prop(settings, 'reuse_flow')
             new_advanced_panel.prop(settings, 'style_context')
 
         # identify style context