Since they are multiple uses for parent clear operator, It checks parent inverse only when it's called from Relations section from Object properties. It's passing object as context attribute `object_check_parent_inverse` so that poll check will occur only in this case and won't interrupt other workflows.

@@ -1832,0 +1833,4 @@
+{
+  for (int row = 0; row < 4; row++) {
+    for (int col = 0; col < 4; col++) {
+      if (m[row][col] != ((row == col) ? 1.0f : 0.0f))

@@ -1020,1 +1020,4 @@
 
+static bool childof_clear_inverse_poll(bContext *C)
+{
+  if (!edit_constraint_liboverride_allowed_poll(C))

@@ -1021,0 +1025,4 @@
+
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "constraint", &RNA_Constraint);
+  bConstraint *con = static_cast<bConstraint *>(ptr.data);
+  if (con == nullptr)

@@ -1278,1 +1301,4 @@
 
+static bool objectsolver_clear_inverse_poll(bContext *C)
+{
+  if (!edit_constraint_poll(C))

@@ -1279,0 +1306,4 @@
+
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "constraint", &RNA_Constraint);
+  bConstraint *con = static_cast<bConstraint *>(ptr.data);
+  if (con == nullptr)

@@ -411,10 +454,54 @@ class OBJECT_PT_custom_props(ObjectButtonsPanel, PropertyPanel, Panel):
     _property_type = bpy.types.Object
 
 
+class TransformAttributes(PropertyGroup):

@@ -414,0 +458,4 @@
+    def set_read_only_prop(self, value):
+        pass
+
+    def get_matrix_components(self) -> Tuple[Vector, Quaternion, Vector]:

@@ -414,0 +462,4 @@
+        return self.id_data.matrix_parent_inverse.decompose()
+
+    def get_location(self):
+        return self.get_matrix_components()[0]

@@ -414,0 +470,4 @@
+    def get_scale(self):
+        return self.get_matrix_components()[2]
+
+    # we implement only euler rotation as it should cover most of the cases

@@ -414,0 +481,4 @@
+    )
+
+    location: FloatVectorProperty(
+        name="Location", get=get_location, set=set_read_only_prop, options=set(), subtype="TRANSLATION", precision=5

@@ -429,2 +517,4 @@
 )
 
+def register_props():
+    bpy.types.Object.parent_inverse_transform = PointerProperty(type=TransformAttributes)

@@ -1021,0 +1027,4 @@
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "constraint", &RNA_Constraint);
+  bConstraint *con = static_cast<bConstraint *>(ptr.data);
+  if (con == nullptr) {
+    return true;

@@ -1021,0 +1032,4 @@
+
+  bChildOfConstraint *data = (bChildOfConstraint *)con->data;
+  if (data->tar == nullptr) {
+    CTX_wm_operator_poll_msg_set(C, "No target object set, so there is nothing to clear");

@@ -1279,0 +1310,4 @@
+  PointerRNA ptr = CTX_data_pointer_get_type(C, "constraint", &RNA_Constraint);
+  bConstraint *con = static_cast<bConstraint *>(ptr.data);
+  if (con == nullptr) {
+    return true;

@@ -1279,0 +1315,4 @@
+
+  bObjectSolverConstraint *data = (bObjectSolverConstraint *)con->data;
+  if (data->camera == nullptr) {
+    CTX_wm_operator_poll_msg_set(C, "No camera set, so there is nothing to clear");

@@ -110,0 +127,4 @@
+        inverse_matrix = ob.matrix_parent_inverse
+        inverse_props = ob.parent_inverse_transform
+
+        # we use 3x3 matrix because we don't care about translation-shear

@@ -110,0 +136,4 @@
+        layout.prop(inverse_props, "rotation_euler", text="Rotation")
+        layout.prop(inverse_props, "scale")
+
+        op = layout.operator("object.parent_clear", text="Clear Parent Inverse Transform")

@@ -414,0 +447,4 @@
+class ReadOnlyMatrixDecomposition(PropertyGroup):
+    """An utility property group for bpy.types.Object
+    for accessing read-only parent inverse matrix decomposition properties,
+    such as location, rotation and scale."""

@@ -414,0 +448,4 @@
+    """An utility property group for bpy.types.Object
+    for accessing read-only parent inverse matrix decomposition properties,
+    such as location, rotation and scale."""
+    def _get_matrix(self) -> Matrix:

@@ -430,1 +508,4 @@
 
+def register_props():
+    # Property is used to present parent inverse matrix in UI as it's decomposed properties.
+    bpy.types.Object.parent_inverse_transform = PointerProperty(type=ReadOnlyMatrixDecomposition)

@@ -1832,0 +1833,4 @@
+{
+  for (int row = 0; row < 4; row++) {
+    for (int col = 0; col < 4; col++) {
+      if (m[row][col] != ((row == col) ? 1.0f : 0.0f)) {

@@ -414,0 +479,4 @@
+        get=_get_rotation_euler,
+        set=None,
+        subtype="EULER",
+        precision=5,