diff --git a/DOCS/groups-usr.dox b/DOCS/groups-usr.dox
index e5270e34f..c3d78580c 100644
--- a/DOCS/groups-usr.dox
+++ b/DOCS/groups-usr.dox
@@ -454,6 +454,14 @@
         @}
     @}
 
+    @defgroup low_rank_top          Low-rank factorizations (CX, CUR, etc.)
+    @{
+        @defgroup cx_grp            CX factorization
+        @{
+            @defgroup gecxx         gecxx:          CX factorization, expert interface
+        @}
+    @}
+
     @defgroup geev_top              Non-symmetric eigenvalues
     @{
         @defgroup geev_driver_grp   Standard eig driver, AV = VΛ
@@ -938,7 +946,7 @@ https://www.netlib.org/xblas/
             @defgroup hemv          {he,sy}mv:      Hermitian/symmetric matrix-vector multiply ([cz]symv in LAPACK)
             @defgroup her           {he,sy}r:       Hermitian/symmetric rank-1 update
             @defgroup her2          {he,sy}r2:      Hermitian/symmetric rank-2 update
-				
+
             @defgroup skewhemv      skew{he,sy}mv:  skew-Hermitian/symmetric matrix-vector multiply
             @defgroup skewher2      skew{he,sy}r2:  skew-Hermitian/symmetric rank-2 update
 
@@ -970,7 +978,7 @@ https://www.netlib.org/xblas/
             @defgroup hemm          {he,sy}mm:      Hermitian/symmetric matrix-matrix multiply
             @defgroup herk          {he,sy}rk:      Hermitian/symmetric rank-k update
             @defgroup her2k         {he,sy}r2k:     Hermitian/symmetric rank-2k update
-				
+
             @defgroup skewhemm      skew{he,sy}mm:  skew-Hermitian/symmetric matrix-matrix multiply
             @defgroup skewher2k     skew{he,sy}r2k: skew-Hermitian/symmetric rank-2k update