About horizontal & vertical scroll, i mean about when grid got to show several columns, it can show an horizontal scroll, in this way also a vertical scroll (if you dont want any pager)
Really i’ve made my own CGridView extension and i’ve added choice for creating horizontall scroll but id like to know if it could be get it in the new release. (if you want i could send you my code, it’s really simple).
Fixed or frozen header - footer - columns, got sense when it’s possible set scroll to grid.
Amongst the above, the horizontal scroll is supported in Yii2, simply because Yii2 has Twitter Bootstrap 3 inbuilt into its core. In order to achieve this, just wrap the grid in a container with table-responsive class.