I am attempting to merge two seismic volumes in the same project. One is a 3D cube and the other is a collection of 2D lines. The two surveys have different coordinate systems (3D is NAD27 and 2D is WGS84). When I load in the 2D lines, the location of the two volumes does not overlap, which they should because they cover some of the same area. Is there a way to convert the projection system of the 2D lines to make them overlay and merge in the proper fashion? Thanks for your time!