diff --git a/src/bonsai/bonsai/bim/module/sequence/prop.py b/src/bonsai/bonsai/bim/module/sequence/prop.py
index 97f274c421..1d6cc521bd 100644
--- a/src/bonsai/bonsai/bim/module/sequence/prop.py
+++ b/src/bonsai/bonsai/bim/module/sequence/prop.py
@@ -542,6 +542,12 @@ class BIMWorkScheduleProperties(PropertyGroup):
     should_auto_select: BoolProperty(
         name="Auto Select", description="Auto select elements when task is selected", default=False
     )
+    should_aggregate_contracted_tasks: BoolProperty(
+        name="Aggregate Collapsed Tasks",
+        description="Animate tasks collapsed in the task tree as single units, "
+        "using the collapsed task's derived date range for all products of its nested tasks",
+        default=False,
+    )
 
     if TYPE_CHECKING:
         work_schedule_predefined_types: str
@@ -602,6 +608,8 @@ class BIMWorkScheduleProperties(PropertyGroup):
         show_task_operators: bool
         should_show_schedule_baseline_ui: bool
         filter_by_active_schedule: bool
+        should_auto_select: bool
+        should_aggregate_contracted_tasks: bool
 
 
 class BIMTaskTreeProperties(PropertyGroup):
diff --git a/src/bonsai/bonsai/bim/module/sequence/ui.py b/src/bonsai/bonsai/bim/module/sequence/ui.py
index e393c425c2..c184964790 100644
--- a/src/bonsai/bonsai/bim/module/sequence/ui.py
+++ b/src/bonsai/bonsai/bim/module/sequence/ui.py
@@ -585,6 +585,9 @@ class BIM_PT_animation_tools(Panel):
         row.label(text="Display Settings")
         row = self.layout.row()
         row.alignment = "RIGHT"
+        row.prop(self.props, "should_aggregate_contracted_tasks", icon="COLLAPSEMENU")
+        row = self.layout.row()
+        row.alignment = "RIGHT"
         row.prop(self.animation_props, "should_show_task_bar_options", text="Task Bars", icon="NLA_PUSHDOWN")
         if self.animation_props.should_show_task_bar_options:
             row = self.layout.row()
diff --git a/src/bonsai/bonsai/tool/sequence.py b/src/bonsai/bonsai/tool/sequence.py
index 3da5290311..6f83975e4b 100644
--- a/src/bonsai/bonsai/tool/sequence.py
+++ b/src/bonsai/bonsai/tool/sequence.py
@@ -1335,6 +1335,9 @@ class Sequence(bonsai.core.tool.Sequence):
     @classmethod
     def get_animation_product_frames(cls, work_schedule: ifcopenshell.entity_instance, settings: dict[str, Any]):
         def preprocess_task(task):
+            if task.id() in contracted_tasks and ifcopenshell.util.sequence.get_nested_tasks(task):
+                preprocess_aggregated_task(task)
+                return
             for subtask in ifcopenshell.util.sequence.get_nested_tasks(task):
                 preprocess_task(subtask)
             start = ifcopenshell.util.sequence.derive_date(task, "ScheduleStart", is_earliest=True)
@@ -1346,6 +1349,19 @@ class Sequence(bonsai.core.tool.Sequence):
             for input in cls.get_task_inputs(task):
                 add_product_frame(input.id(), task.PredefinedType, start, finish, "input")
 
+        def preprocess_aggregated_task(task):
+            # A collapsed task animates as a single unit: all products of its
+            # nested tasks use the collapsed task's derived date range.
+            start = ifcopenshell.util.sequence.derive_date(task, "ScheduleStart", is_earliest=True)
+            finish = ifcopenshell.util.sequence.derive_date(task, "ScheduleFinish", is_latest=True)
+            if not start or not finish:
+                return
+            for subtask in [task, *ifcopenshell.util.sequence.get_all_nested_tasks(task)]:
+                for output in ifcopenshell.util.sequence.get_task_outputs(subtask):
+                    add_product_frame(output.id(), subtask.PredefinedType, start, finish, "output")
+                for input in ifcopenshell.util.sequence.get_task_inputs(subtask):
+                    add_product_frame(input.id(), subtask.PredefinedType, start, finish, "input")
+
         def add_product_frame(product_id, type, product_start, product_finish, relationship):
             product_frames.setdefault(product_id, []).append(
                 {
@@ -1363,6 +1379,10 @@ class Sequence(bonsai.core.tool.Sequence):
             )
 
         product_frames = {}
+        contracted_tasks: set[int] = set()
+        props = cls.get_work_schedule_props()
+        if props.should_aggregate_contracted_tasks:
+            contracted_tasks = set(json.loads(props.contracted_tasks))
         for root_task in ifcopenshell.util.sequence.get_root_tasks(work_schedule):
             preprocess_task(root_task)
         return product_frames