Index: /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditLevel0LAction.java
===================================================================
--- /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditLevel0LAction.java	(revision 35293)
+++ /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditLevel0LAction.java	(revision 35294)
@@ -59,5 +59,5 @@
         final DataSet dataSet = MainApplication.getLayerManager().getEditDataSet();
         final Path path = writeLevel0(dataSet);
-        final Process editor = new ProcessBuilder("kate", path.toString()).start();
+        final Process editor = new EditorLauncher(path).launch();
         Logging.info("Comfort0: Launching editor on file {0}", path);
         new Thread(() -> awaitEditing(dataSet, path, editor), path.getFileName().toString()).start();
@@ -70,5 +70,5 @@
                 .replace("\u200F", "")
                 .getBytes(CHARSET);
-        final Path path = Files.createTempFile("level0", ".txt");
+        final Path path = Files.createTempFile("josm_level0_", ".txt");
         Files.write(path, level0);
         return path;
Index: /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditorLauncher.java
===================================================================
--- /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditorLauncher.java	(revision 35294)
+++ /applications/editors/josm/plugins/comfort0/src/net/simon04/comfort0/EditorLauncher.java	(revision 35294)
@@ -0,0 +1,65 @@
+package net.simon04.comfort0;
+
+import static org.openstreetmap.josm.tools.I18n.tr;
+
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.openstreetmap.josm.spi.preferences.Config;
+import org.openstreetmap.josm.tools.Logging;
+
+/**
+ * Launches an external editor.
+ */
+public class EditorLauncher {
+
+    private Path fileToEdit;
+
+    /**
+     * Constructs a new {@link EditorLauncher}.
+     * @param fileToEdit the file to edit
+     */
+    public EditorLauncher(Path fileToEdit) {
+        this.fileToEdit = fileToEdit;
+    }
+
+    /**
+     * Attempts to launch an external editor.
+     * @return the process of the running editor
+     * @throws IOException if any I/O error occurs, in particular if no editor could be launched
+     */
+    public Process launch() throws IOException {
+        final String key = "comfort0.editor";
+        final List<String> editors = Config.getPref().getList(key, Arrays.asList(
+                "code --new-window --reuse-window --wait",
+                "atom --wait",
+                "gedit --standalone --wait",
+                "kate --new --block",
+                "konsole -e nvim",
+                "urxvt -e nvim",
+                "konsole -e vim",
+                "urxvt -e vim",
+                "konsole -e nano",
+                "urxvt -e nano",
+                "notepad++",
+                "notepad"
+        ));
+        for (String editor : editors) {
+            final List<String> cmd = Stream.concat(Pattern.compile("\\s+").splitAsStream(editor),
+                    Stream.of(fileToEdit.toString()))
+                    .collect(Collectors.toList());
+            try {
+                return new ProcessBuilder(cmd).start();
+            } catch (IOException ex) {
+                Logging.trace(ex);
+                // try next editor
+            }
+        }
+        throw new IOException(tr("No supported editor found. Please ''{0}'' set in advanced preferences!", key));
+    }
+}