diff --git a/scripts/network.gd b/scripts/network.gd
index dea87069..ffbba996 100644
--- a/scripts/network.gd
+++ b/scripts/network.gd
@@ -1,4 +1,4 @@
-#@tool
+@tool
 class_name Network extends Node
 
 const YAU07_PROTO: = {'yau07tx': yau07.YaU07}
@@ -391,6 +391,7 @@ func get_tcp_data(sock: SocketTCP, peer: StreamPeer, len_rx: int):
 
 
 func _process(_delta: float) -> void:
+    if Engine.is_editor_hint(): return
     tick = Time.get_ticks_msec()
     RenderingServer.global_shader_parameter_set('tick_curent', tick)
     for unit_name: StringName in units_udptx:
@@ -424,5 +425,4 @@ func _process(_delta: float) -> void:
 
 ## [param unit_name] - Уникальное имя устройства[br]
 func get_unit_instance(unit_name: StringName) -> unit.Unit:
-    tools.allways(unit_name in units, 'нет такого устройства: \"%s\"' % unit_name)
-    return units[unit_name]
+    return units.get(unit_name, null)
diff --git a/scripts/tools.gd b/scripts/tools.gd
index de9232ca..f7b5caa2 100644
--- a/scripts/tools.gd
+++ b/scripts/tools.gd
@@ -34,7 +34,6 @@ func is_overlap(x1, x2, y1, y2) -> bool: return max(x1, y1) <= min(x2, y2)
 func allways(val: bool, msg: String = '<не указано>'):
     if val: return
     push_error('%s\n' % msg)
-    get_tree().quit(Error.FAILED)
 
 
 ## Преобразует путь в виде целой строки в массив отдельных элементов пути.[br]