How to Create in Route Event layer with Right Angle?

I have collected GPS points along the road. and got Right angle Tape measurements of Boundary walls and other objects from that respective points. I have those records in Excel Sheet and GPS observation is in Shp file. Now I want to plot those points. I Have Tried with Linear referencing Tool in Arcmap. The events were created as point layer but that is not in Right Angle... How to Solve this?