FT-5000 does have TARGETABLE_MODE

rigs/yaesu/ft5000.c

@@ -421,7 +421,7 @@ const struct rig_caps ftdx101d_caps =
     .max_xit =            Hz(9999),
     .max_ifshift =        Hz(1000),
     .vfo_ops =            FTDX5000_VFO_OPS,
-    .targetable_vfo =     RIG_TARGETABLE_FREQ, /* one of the few diffs from the 5000 */
+    .targetable_vfo =     RIG_TARGETABLE_FREQ|RIG_TARGETABLE_MODE, 
     .transceive =         RIG_TRN_OFF,        /* May enable later as the 5000 has an Auto Info command */
     .bank_qty =           0,
     .chan_desc_sz =       0,