diff --git a/src/opt_group.f90 b/src/opt_group.f90
index 03dfd68..855e04e 100644
--- a/src/opt_group.f90
+++ b/src/opt_group.f90
@@ -8,7 +8,7 @@ module opt_group
     use box 
     implicit none
 
-    integer :: group_ele_num, group_atom_num, remesh_size,normal, dim1, dim2, random_num, group_type
+    integer :: group_ele_num, group_atom_num, remesh_size,normal, dim1, dim2, random_num, group_type, notsize
     character(len=15) :: type, shape !Type indicates what element type is selected and shape is the group shape
     real(kind=dp) :: block_bd(6), centroid(3), vertices(3,3),disp_vec(3), radius, bwidth
     logical :: displace, delete, max_remesh, refine, group_nodes, flip
@@ -29,6 +29,7 @@ module opt_group
         remesh_size=0
         random_num=0
         group_type=0
+        notsize=0
         displace=.false.
         delete=.false.
         max_remesh=.false.
@@ -334,6 +335,10 @@ module opt_group
             if (arglen==0) STOP "Missing sphere radius in group command"
             read(textholder, *) radius
 
+        case('all')
+            !Do nothing if the shape is all
+            continue
+
         case default
             print *, "Group shape ", trim(adjustl(shape)), " is not currently accepted. Please check documentation ", &
                      "for accepted group shapes."
@@ -382,6 +387,12 @@ module opt_group
                 call get_command_argument(arg_pos, textholder, arglen)
                 if (arglen==0) stop "Missing atom type for group"
                 call add_atom_type(textholder, group_type)
+            case('notsize')
+                arg_pos = arg_pos + 1
+                call get_command_argument(arg_pos, textholder, arglen)
+                if(arglen ==0) stop "Missing notsize size"
+                read(textholder, *) notsize
+                print *, "Ignoring elements with size ", notsize
             case default
                 !If it isn't an available option to opt_disl then we just exit
                 exit 
@@ -409,6 +420,8 @@ module opt_group
             return
         case('sphere')
             print *, "Group has sphere shape with centroid ", centroid(:), " and radius ", radius
+        case('all')
+            print *, "Group has all of type ", type
         end select
 
         !Reset group if needed
@@ -429,7 +442,7 @@ module opt_group
                         end do
                     end do
 
-                    if (in_group(r_center).neqv.flip) then 
+                    if ((in_group(r_center).neqv.flip).and.(size_ele(i)/= notsize)) then 
                         group_ele_num  = group_ele_num + 1
                         if(group_ele_num > size(element_index)) then
                             allocate(resize_array(size(element_index) + 1024))
@@ -447,7 +460,7 @@ module opt_group
                     r_center(:) = 0.0_dp
                     do inod = 1, ng_node(lat_ele(i))
                         do ibasis = 1, basisnum(lat_ele(i))
-                             if (in_group(r_node(:,ibasis,inod,i)).neqv.flip) then 
+                             if ((in_group(r_node(:,ibasis,inod,i)).neqv.flip).and.(size_ele(i)/=notsize)) then 
                                 group_ele_num  = group_ele_num + 1
                                 if(group_ele_num > size(element_index)) then
                                     allocate(resize_array(size(element_index) + 1024))
@@ -919,6 +932,8 @@ module opt_group
             else
                 in_group = .false.
             end if
+        case('all')
+            in_group = .true.
         end select 
     end function in_group
 end module opt_group