The Wittur SGV/AMD (TK ld-16 also related) has a GAL interlock refit (clutch) model. You have to change out the operator, which should be a breeze, because they make mounting adapters. No need to redril mountings on doors. You will see it in the clutches/skates section toward the bottom of this link: https://verticalxpress.com/media/download_files/component_manuals/ld_16_udo_mod.pdf

GAL does make a linear operator w/CDL called MONXT; however unlike the Wittur/KONE.TK product, you can't use the traditional style pickup roller. You have to replace it with new header mounted rollers, which makes it more suited for new installs or GAL/ECI mods requiring pickup roller replacement. I don't know what GAL product Solidstate's describing. Do you have a link?

If you read my earlier post. Facia (sheet metal) is one of the things I don't like about harmonic and old-style linear (Armor, Westinghouse). It's looks tacky on all glass installs. It's also more expensive.