diff --git a/demo/plate1n/data/sample-x146-y394-signal-Txx.csv b/demo/plate1n/data/sample-x146-y394-signal-Txx.csv
new file mode 100644
index 0000000..bf170d4
--- /dev/null
+++ b/demo/plate1n/data/sample-x146-y394-signal-Txx.csv
@@ -0,0 +1,99 @@
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+0.000000000000000000e+00
+-1.021995668624638462e-37
+-4.275182955154424835e-34
+-9.646384059514485350e-31
+-1.313570696326597839e-27
+-1.102462598722696633e-24
+-5.801806143329918557e-22
+-1.940684495015486712e-19
+-4.168085351677126469e-17
+-5.786218011482159931e-15
+-5.207476702455415829e-13
+-3.035125276107386583e-11
+-1.139056737819998943e-09
+-2.721168357311398722e-08
+-4.061757863382808864e-07
+-3.685274805320659652e-06
+-1.959237670234870166e-05
+-5.889571184525266290e-05
+-1.023441654979251325e-04
+-1.248468906851485372e-04
+-1.147895891335792840e-04
+-2.905761175497900695e-05
+1.321500021731480956e-04
+3.628899576142430305e-04
+6.169944535940885544e-04
+7.943445234559476376e-04
+7.661871495656669140e-04
+4.737846320495009422e-04
+-1.103733666241168976e-04
+-8.484057034365832806e-04
+-1.547148101963102818e-03
+-1.971755176782608032e-03
+-1.950379111804068089e-03
+-1.426752191036939621e-03
+-5.315721500664949417e-04
+4.879283660557121038e-04
+1.328697893768548965e-03
+1.789023983292281628e-03
+1.804004423320293427e-03
+1.474066521041095257e-03
+9.966827929019927979e-04
+5.682944902218878269e-04
+3.031491651199758053e-04
+1.860611228039488196e-04
+1.056048567988909781e-04
+-5.532062641577795148e-05
+-3.501601458992809057e-04
+-7.400877075269818306e-04
+-1.098383450880646706e-03
+-1.272477675229310989e-03
+-1.164499088190495968e-03
+-7.882577483542263508e-04
+-2.549165801610797644e-04
+2.676757285371422768e-04
+6.283655529841780663e-04
+7.504523382522165775e-04
+6.455438560806214809e-04
+3.936464199796319008e-04
+8.929372415877878666e-05
+-1.597836817381903529e-04
+-2.962076687254011631e-04
+-3.263397666160017252e-04
+-2.717234310694038868e-04
+-1.790599344531074166e-04
+-8.984043233795091510e-05
+4.054239070683252066e-06
+9.443033195566385984e-05
+1.879095652839168906e-04
+3.257995704188942909e-04