I am using three vector layers (point, polyline and polygon shapefiles) of the region of interest. Any advice in making the selections from one dataset based on the other datasets? What I am trying to do is to select the features of other two layers based on the one layer. I am aware that QGIS does provide a function for the selection of one vector layer based on the other layer but this is not the case because I am interested to select features of two vector layers rather than one.