Using QGIS 2.18.3, I have a project containing a single vector layer. Both the project and the layer have the same CRS: NAD83/Alaska Albers (EPSG:3338). I need to temporarily modify the project's CRS by changing the Longitude of Center from the default value of -154 to -163.
I've tried to edit the default longitude value in the Project Properties window, as highlighted in the screenshot below, but QGIS does not allow me to overwrite the default value.
Please note that I do not wish to reproject the data layer; rather I wish to modify the project display.