There's a special place in hell for those who don't provide keyboard shortcuts for commonly used commands.

It's shared with those who don't display the shortcut keys in the menus, so you can learn them.

Right next to that place is a smaller one, for those who DO provide keyboard shortcuts, but make up their own instead of doing something your users expect.

I switched to-do list apps over this:
https://help.ticktick.com/forum/...

On a web page, hold down tab and press N for a new item. Tab.

You either got a new item or you added an N to the item three down the list.