diff --git a/TrimSP.html b/TrimSP.html
index 0344bce..62d3d0f 100644
--- a/TrimSP.html
+++ b/TrimSP.html
@@ -65,6 +65,7 @@
 			<option  value="Li8">Li8</option>
 			<option  value="B12">B12</option>
 			<option  value="H">H</option>
+			<option  value="He">He</option>
 		      </select>
 		    </td>
 		  </tr>
diff --git a/TrimSPlib.js b/TrimSPlib.js
index c46fff0..178f059 100644
--- a/TrimSPlib.js
+++ b/TrimSPlib.js
@@ -934,11 +934,13 @@ function sum(array){
 function startSequence(All) {
     let cmd = '';
     let trimBin = All['trimPath']+"/trimspNL";
+    console.log(trimBin);
     // Check if the trimspNL binary is found
     if (!fileExists(trimBin)) {
 	// if not found, try in PATH and hope for the best
 	trimBin = "trimspNL";
     }
+    console.log(trimBin);
 
     // Check if workPath exists otherwise create it
     checkDir(All['workPath']); // from TrimSPelec.js, Electron/Node specific
diff --git a/fortran/trimspNL.F b/fortran/trimspNL.F
index 50067f9..64b6ef9 100644
--- a/fortran/trimspNL.F
+++ b/fortran/trimspNL.F
@@ -1,6 +1,7 @@
-C     Version TrimSpNL  ----> N Layer
+C     Created June 2000 ---- Testversion               
 C
-C     Created Juni 2000 ---- Testversion               
+C     Version TrimSpNL  ----> Expanded to heterostructures with N Layer
+C     Zaher Salman <zaher.salman@psi.ch>
 C
 C     ***
 C     * C *  COPYRIGHT  W.ECKSTEIN, IPP GARCHING, FRG
@@ -10,8 +11,9 @@ C     if you use this code please cite
 C
 C     Eckstein, W. Computer Simulation of Ion-Solid Interactions;
 C     Springer Series in Materials Science;
-C      Springer-Verlag: Berlin Heidelberg, 1991.
+C     Springer-Verlag: Berlin Heidelberg, 1991.
 C
+C     Historical overview:
 C     PROGRAM TRVMC95   VERSION AT IPP GARCHING  NOVEMBER 1995
 C             MOMENTS OF DISTRIBUTIONS (RANGE, ENERGY AND 
 C             ANGLE OF BACKSCATTERED AND SPUTTERED ATOMS)
@@ -2325,7 +2327,7 @@ C
 
 C     2nd CALL DATE_AND_TIME
 C
-C how many seconds are needed for the simulation ??
+C     How many seconds are needed for the simulation ??
 C
       CALL TimeStamp(day_stop,month_stop,year_stop, hour_stop,min_stop
      &     ,sec_stop,seconds_stop_total)
diff --git a/main.js b/main.js
index 6053be4..04862b5 100644
--- a/main.js
+++ b/main.js
@@ -6,6 +6,7 @@ function createWindow () {
 	height: 580,
 	icon: "./appicons/icons/png/1024x1024.png",
 	webPreferences: {
+	    contextIsolation: false,
 	    nodeIntegration: true,
 	    nativeWindowOpen: true,
 	    enableRemoteModule: true,