To get concurrent reactions at support node (i.e. maximum or minimum force at one node and corresponding forces at the othernodes), concurrent reaction groups has to be defined.
After definition of live loads, define the concurrent reaction group using the work flow as
shown.
From Main Menu select
Load > Moving Load > Moving Load Code > Concurrent Reaction Group
For Viewing Concurrent reactions after analysis, go to
Results > Result Tables > Concurrent (Max/Min Reactions)