The latest update of Data Basin includes some minor bug fixes, but it also includes multiple enhancements to selecting features from datasets. You can now select features using a free-form polygon (or lasso) tool. You can also select features based on their attributes. In addition, you can select features based on whether or not they intersect with other items such as drawings, other datasets, or other selections. The short video attached to this post has some quick demonstrations of these new tools.