shown in fig8 b first leg 60 may be operative to support an occupant engaging upper working surface 56 of body member 54 when first leg 60 is in fully extended position 92 in fully extended position 92 first leg 60 may make reversible lock fit engagement with floor 68 of vehicle 22 using a device such as latch 94 or channel 96 as shown in fig4 a 4b in one or more arrangements second leg 262 may be pivotally coupled to lower surface 58 of body member 54 at either one of inner edge 82 and outer edges 84 further second leg 262 may be pivotally coupled to lower surface 58 of body member 54 opposite first leg 60 pivotal coupling allows second leg 262 to fold second leg 262 may have first and second portions 300 302 a first end 304 of first portion 300 may be coupled to lower surface 58 of body member 54 and a second end 306 of first portion 300 may be pivotally coupled to a first end 308 of second portion 302 a second end 310 of second portion 302 may be operatively pivotally coupled to bottom surface 34 of seat bottom 26 as is shown in fig7 d the lengths of first and second portions 300 302 of second leg 262 may be equivalent or alternatively one portion may be longer than the other portion alternatively as shown in both fig7 f second leg 262 may.