- created a new custom layout based on the Grid Layout where I can set the horizontal and vertical spacings between grid items and used it throughout the app

appGUI/preferences/excellon/ExcellonOptPrefGroupUI.py

@@ -1,6 +1,6 @@
 from PyQt6 import QtWidgets
 
-from appGUI.GUIElements import FCDoubleSpinner, FCLabel
+from appGUI.GUIElements import FCDoubleSpinner, FCLabel, FCGridLayout
 from appGUI.preferences.OptionsGroupUI import OptionsGroupUI
 import gettext
 import appTranslation as fcTranslate
@@ -28,7 +28,7 @@ class ExcellonOptPrefGroupUI(OptionsGroupUI):
         )
         self.layout.addWidget(self.cncjob_label)
 
-        grid2 = QtWidgets.QGridLayout()
+        grid2 = FCGridLayout(v_spacing=3)
         self.layout.addLayout(grid2)
         grid2.setColumnStretch(0, 0)
         grid2.setColumnStretch(1, 1)