diff --git a/vmcompact/app.py b/vmcompact/app.py
index f151201..c8748db 100644
--- a/vmcompact/app.py
+++ b/vmcompact/app.py
@@ -1,7 +1,6 @@
 import tkinter as tk
 from tkinter import ttk
 from typing import NamedTuple
-from functools import partial
 from pathlib import Path
 
 from .errors import VMCompactErrors
@@ -47,6 +46,9 @@ class App(tk.Tk):
                 "width": 80,
                 "height": 130,
             },
+            "mwscroll_step": {
+                "size": 3,
+            },
             "submixes": {
                 "default": 0,
             },
@@ -60,6 +62,8 @@ class App(tk.Tk):
             "extends_horizontal"
         ]
         _base_vals.submixes = self.configuration["submixes"]["default"]
+        _base_vals.mwscroll_step = self.configuration["mwscroll_step"]["size"]
+
         # create menus
         self.menus = Menus(self, vmr)
         self.styletable = ttk.Style()
diff --git a/vmcompact/channels.py b/vmcompact/channels.py
index afc9438..a8fd929 100644
--- a/vmcompact/channels.py
+++ b/vmcompact/channels.py
@@ -73,10 +73,14 @@ class Channel(ttk.LabelFrame):
         _base_vals.in_scale_button_1 = False
 
     def _on_mousewheel(self, event):
-        if event.delta > 0:
-            self.gain.set(self.gain.get() + 3)
-        else:
-            self.gain.set(self.gain.get() - 3)
+        self.gain.set(
+            self.gain.get()
+            + (
+                _base_vals.mwscroll_step
+                if event.delta > 0
+                else -_base_vals.mwscroll_step
+            )
+        )
         if self.gain.get() > 12:
             self.gain.set(12)
         elif self.gain.get() < -60:
diff --git a/vmcompact/configs/app.toml b/vmcompact/configs/app.toml
new file mode 100644
index 0000000..a824228
--- /dev/null
+++ b/vmcompact/configs/app.toml
@@ -0,0 +1,18 @@
+# load with themes enabled? set the default mode
+[theme]
+enabled=true
+mode="light"
+# load in extended mode? if so which orientation
+[extends]
+extended=true
+extends_horizontal=true
+# default dimensions for channel label frames
+[channel]
+width=80
+height=130
+# size of a single mouse wheen scroll step
+[mwscroll_step]
+size=3
+# default submix bus
+[submixes]
+default=6
diff --git a/vmcompact/configs/vban.toml b/vmcompact/configs/vban.toml
new file mode 100644
index 0000000..231acf1
--- /dev/null
+++ b/vmcompact/configs/vban.toml
@@ -0,0 +1,12 @@
+# example connections
+[connection-1]
+kind = 'banana'
+ip = '<ip address 1>'
+streamname = 'Command1'
+port = 6990
+
+[connection-2]
+kind = 'potato'
+ip = '<ip address 2>'
+streamname = 'Command1'
+port = 6990
diff --git a/vmcompact/data.py b/vmcompact/data.py
index d68044b..7b5c9f0 100644
--- a/vmcompact/data.py
+++ b/vmcompact/data.py
@@ -29,6 +29,8 @@ class BaseValues:
     strip_level_array_size: int = None
     # size of bus level array for a kind
     bus_level_array_size: int = None
+    # size of mousewheel scroll step
+    mwscroll_step: int = 3
 
 
 _base_vals = BaseValues()
diff --git a/vmcompact/gainlayer.py b/vmcompact/gainlayer.py
index e051205..bd7b974 100644
--- a/vmcompact/gainlayer.py
+++ b/vmcompact/gainlayer.py
@@ -1,6 +1,5 @@
 import tkinter as tk
-from tkinter import ttk, messagebox as msg
-from functools import partial
+from tkinter import ttk
 from math import log
 
 from .data import _base_vals
@@ -62,10 +61,14 @@ class GainLayer(ttk.LabelFrame):
         _base_vals.in_scale_button_1 = False
 
     def _on_mousewheel(self, event):
-        if event.delta > 0:
-            self.gain.set(self.gain.get() + 3)
-        else:
-            self.gain.set(self.gain.get() - 3)
+        self.gain.set(
+            self.gain.get()
+            + (
+                _base_vals.mwscroll_step
+                if event.delta > 0
+                else -_base_vals.mwscroll_step
+            )
+        )
         if self.gain.get() > 12:
             self.gain.set(12)
         elif self.gain.get() < -60: