diff --git a/src/myfasthtml/controls/DataGrid.py b/src/myfasthtml/controls/DataGrid.py
index 5f58889..90b4608 100644
--- a/src/myfasthtml/controls/DataGrid.py
+++ b/src/myfasthtml/controls/DataGrid.py
@@ -567,7 +567,7 @@ class DataGrid(MultipleInstance):
     return self.render_partial("body")
   
   def on_click(self, combination, is_inside, cell_id):
-    logger.debug(f"on_click {combination=} {is_inside=} {cell_id=}")
+    logger.debug(f"on_click table={self.get_table_name()} {combination=} {is_inside=} {cell_id=}")
     if is_inside and cell_id:
       self._state.selection.extra_selected.clear()
       
@@ -596,7 +596,7 @@ class DataGrid(MultipleInstance):
     return self.render_partial()
   
   def on_key_pressed(self, combination, has_focus, is_inside):
-    logger.debug(f"on_key_pressed {combination=} {has_focus=} {is_inside=}")
+    logger.debug(f"on_key_pressed table={self.get_table_name()} {combination=} {has_focus=} {is_inside=}")
     if combination == "esc":
       self._update_current_position(None)
       self._state.selection.extra_selected.clear()
@@ -650,6 +650,7 @@ class DataGrid(MultipleInstance):
         mk.label(col_def.title, icon=icons.get(col_def.type, None)),
         # make room for sort and filter indicators
         cls="flex truncate cursor-default",
+        data_tooltip=col_def.title,
       )
     
     def _mk_header(col_def: DataGridColumnState):
diff --git a/src/myfasthtml/controls/helpers.py b/src/myfasthtml/controls/helpers.py
index aaf151c..8c14e4c 100644
--- a/src/myfasthtml/controls/helpers.py
+++ b/src/myfasthtml/controls/helpers.py
@@ -104,9 +104,9 @@ class mk:
             command: Command | CommandTemplate = None,
             binding: Binding = None,
             **kwargs):
-    merged_cls = merge_classes("flex truncate items-center", "mf-button" if command else None, cls, kwargs)
+    merged_cls = merge_classes("flex truncate items-center pr-2", "mf-button" if command else None, cls, kwargs)
     icon_part = Span(icon, cls=f"mf-icon-{mk.convert_size(size)} mr-1") if icon else None
-    text_part = Span(text, cls=f"text-{size}")
+    text_part = Span(text, cls=f"text-{size} truncate")
     return mk.mk(Label(icon_part, text_part, cls=merged_cls, **kwargs), command=command, binding=binding)
   
   @staticmethod
diff --git a/src/myfasthtml/core/commands.py b/src/myfasthtml/core/commands.py
index 899f4c8..9705229 100644
--- a/src/myfasthtml/core/commands.py
+++ b/src/myfasthtml/core/commands.py
@@ -88,8 +88,10 @@ class Command:
     if auto_register:
       if self._key is not None:
         if self._key in CommandsManager.commands_by_key:
+          logger.debug(f"Command {self.name} with key={self._key} will not be registered.")
           self.id = CommandsManager.commands_by_key[self._key].id
         else:
+          logger.debug(f"Command {self.name} with key={self._key} will be registered.")
           CommandsManager.register(self)
       else:
         logger.warning(f"Command {self.name} has no key, it will not be registered.")