What may be confusing is that there are multiple pages of available memory positions. You can select which memory page you want to use by pressing the page up or down keys( - and + at the bottom right). Select the page first, I use P0 since it is the first one, then switch to VF mode (key at top right), enter your frequency, press Memory (bottom left), select the memory position with the tuning knob, press Memory key again to store.