Add mnemonic for time overlap motor position

src/toolbox_scs/constants.py

@@ -417,6 +417,9 @@ mnemonics = {
                         {'source': 'SCS_ILH_LAS/MOTOR/LT3',
                          'key': 'AActualPosition.value',
                          'dim': None},),
+    "PP800_T0_mm": ({'source': 'SCS_ILH_LAS/MDL/OPTICALDELAY_PP800',
+                     'key': 'motorOffset.value',
+                     'dim': None},),
     "PP800_HalfWP": ({'source': 'SCS_ILH_LAS/MOTOR/ROT8WP1',
                       'key': 'actualPosition.value',
                       'dim': None},),