robadorIf you've got ALPS-compatible switch stems (such as Mattias switches) on your Planck/Ortholinear: yes, the alphas can be used. Filling in the bottom row modifiers may be a challenge. If these are still the Tai-Hao sets, beware that the Tai-Hao OEM profile has a slightly steeper angle on the bottom row than the shift row. If you want a bottom row on your Planck with a consistent profile you could use the esc/f-key/number row.