You can now remove structural connection conditions + minor mods

src/ifcopenshell-python/ifcopenshell/api/structural/data.py

@@ -2,9 +2,8 @@ class Data:
     is_loaded = False
     products = {}
     structural_analysis_models = {}
-    boundary_conditions = {}
-    members = {}
     connections = {}
+    boundary_conditions = {}
     connects_structural_members = {}
 
     @classmethod
@@ -12,9 +11,8 @@ class Data:
         cls.is_loaded = False
         cls.products = {}
         cls.structural_analysis_models = {}
-        cls.boundary_conditions = {}
-        cls.members = {}
         cls.connections = {}
+        cls.boundary_conditions = {}
         cls.connects_structural_members = {}
 
     @classmethod

src/ifcopenshell-python/ifcopenshell/api/structural/remove_structural_boundary_condition.py

@@ -8,7 +8,6 @@ class Usecase:
     def execute(self):
         if not self.settings["connection"].AppliedCondition:
             return
-        if len(self.file.get_inverse(self.settings["connection"].AppliedCondition)) > 1:
-            self.settings["connection"].AppliedCondition = None
-        else:
+        if len(self.file.get_inverse(self.settings["connection"].AppliedCondition)) == 1:
             self.file.remove(self.settings["connection"].AppliedCondition)
+        self.settings["connection"].AppliedCondition = None

src/ifcopenshell-python/ifcopenshell/api/structural/remove_structural_connection_condition.py

@@ -0,0 +1,19 @@
+import ifcopenshell.api
+
+
+class Usecase:
+    def __init__(self, file, **settings):
+        self.file = file
+        self.settings = {"relation": None}
+        for key, value in settings.items():
+            self.settings[key] = value
+
+    def execute(self):
+        if self.settings["relation"].AppliedCondition:
+            ifcopenshell.api.run(
+                "structural.remove_structural_boundary_condition",
+                self.file,
+                **{"connection": self.settings["relation"].RelatedStructuralConnection}
+            )
+        self.file.remove(self.settings["relation"])
+