diff --git a/api/inp_in_new.py b/api/inp_in_new.py
index fbcdf8c..e1b0b4a 100644
--- a/api/inp_in_new.py
+++ b/api/inp_in_new.py
@@ -17,6 +17,44 @@ from .s27_backdrop import inp_in_backdrop_new
 
 _UNKNOWN = 'UNKNOWN'
 
+_level_1 = {
+    TITLE,
+    PATTERNS,
+    CURVES,
+    CONTROLS,
+    RULES,
+    TIMES,
+    REPORT,
+    OPTIONS,
+    BACKDROP,
+}
+
+_level_2 = {
+    JUNCTIONS,
+    RESERVOIRS,
+    TANKS,
+}
+
+_level_3 = {
+    PIPES,
+    PUMPS,
+    VALVES,
+    DEMANDS,
+    EMITTERS,
+    QUALITY,
+    SOURCES,
+    MIXING,
+    COORDINATES,
+    LABELS,
+}
+
+_level_4 = {
+    TAGS,
+    STATUS,
+    ENERGY,
+    REACTIONS,
+    VERTICES,
+}
 
 def scan1(project: str, inp: str) -> list[str]:
     handlers = { 
@@ -110,16 +148,7 @@ def scan2(project: str, inp: str) -> None:
 
 def scan3(project: str, inp: str) -> None:
     handlers = { 
-        #PIPES:  ,    #5
-        #PUMPS: ,   #6
-        #VALVES:      ,        #7
-        #DEMANDS:        , #9
-        #EMITTERS: , #16
-        #QUALITY: , #17
-        #SOURCES: , #18
-        #MIXING: , #20
-        #COORDINATES: #24
-        #LABELS: #26
+
         }
 
     curr_section = _UNKNOWN
@@ -155,11 +184,7 @@ def scan3(project: str, inp: str) -> None:
 
 def scan4(project: str, inp: str) -> None:
     handlers = { 
-        #TAGS:  inp_in_junction_new,    #5
-        #STATUS: inp_in_reservoir_new,   #6
-        #ENERGY:      inp_in_tank_new,        #7
-        #REACTIONS:        , #9
-        #VERTICES: , #16
+
         }
 
     curr_section = _UNKNOWN