When using Feature Layers in Spotfire e.g US States, world countries etc, by default spotfire tries to put the label towards the center of the geography.
However if you are using multiple layers sometimes the default position may not work out nice.
To solve this Spotfire lets you change the position of the label. To do so
1) Right click on the feature layer
2) Drag any Label to a desired position
3) Repeat for other labels
4) Right click and uncheck Edit Label Positions
Here is a video demonstrating this quick feature