diff --git a/demo/plate1n/data/sample-x136-y356-signal-Txx.csv b/demo/plate1n/data/sample-x136-y356-signal-Txx.csv
new file mode 100644
index 0000000..31c48ee
--- /dev/null
+++ b/demo/plate1n/data/sample-x136-y356-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
+-5.889569365535862744e-05
+-1.023441509460099041e-04
+-1.248504122486338019e-04
+-1.148450028267689049e-04
+-2.935609336418565363e-05
+1.316594280069693923e-04
+3.630127175711095333e-04
+6.177526083774864674e-04
+7.960897637531161308e-04
+7.679758709855377674e-04
+4.749972722493112087e-04
+-1.094447507057338953e-04
+-8.498344104737043381e-04
+-1.552063273265957832e-03
+-1.978815998882055283e-03
+-1.957974163815379143e-03
+-1.431512995623052120e-03
+-5.321704666130244732e-04
+4.915668978355824947e-04
+1.336815417744219303e-03
+1.798675395548343658e-03
+1.812915434129536152e-03
+1.480669714510440826e-03
+1.004302990622818470e-03
+5.797334015369415283e-04
+3.197547921445220709e-04
+2.034133794950321317e-04
+1.177123049274086952e-04
+-6.080205639591440558e-05
+-3.839191631413996220e-04
+-7.996778585948050022e-04
+-1.167731476016342640e-03
+-1.324881450273096561e-03
+-1.175285317003726959e-03
+-7.503420929424464703e-04
+-1.844828657340258360e-04
+3.410664212424308062e-04
+6.676152115687727928e-04
+7.274590898305177689e-04
+5.563187296502292156e-04
+2.568514901213347912e-04
+-5.044316640123724937e-05
+-2.566114417277276516e-04
+-3.159248153679072857e-04
+-2.500387781765311956e-04
+-9.138278255704790354e-05
+1.027942926157265902e-04
+2.789861464407294989e-04
+4.113567993044853210e-04
+4.640854313038289547e-04
+4.188745806459337473e-04
+3.126266237813979387e-04