Update app.py

app.py

@@ -17,11 +17,14 @@ of cross-filtering.
 
 text = pn.pane.Markdown(instructions)
 
+# List to store the entered options
+entered_options = []
+
 # Add filter list row with spacing
 filter_list = pn.widgets.CheckButtonGroup(
     name='Filter Options',
     margin=(20, 10),
-    options=[],
+    options=entered_options,  # Use the list of entered options
     sizing_mode='fixed',
     button_type='default'
 )
@@ -34,13 +37,23 @@ new_option_input = pn.widgets.TextInput(sizing_mode="stretch_width", background=
 
 # Callback for the "+" button to add the new option to the filter list
 def add_new_option(event):
-    new_option = new_option_input.value
+    new_option = new_option_input.value.strip()  # Remove leading/trailing spaces
     if new_option:
-        filter_list.options = new_option_input.value.split(',')  # Split the comma-separated input into a list
+        entered_options.append(new_option)  # Add the option to the list of entered options
+        filter_list.options = entered_options  # Update the filter_list options
         new_option_input.value = ""
 
 add_option_button.on_click(add_new_option)
 
+# Callback for removing the selected option from the filter list
+def remove_selected_option(event):
+    selected = filter_list.value
+    if selected:
+        entered_options.remove(selected[0])  # Remove the selected option from the entered options list
+        filter_list.options = entered_options  # Update the filter_list options
+
+filter_list.param.watch(remove_selected_option, 'value')
+
 # Layout using Template
 template = pn.template.FastListTemplate(
     title="EasySciRead",