Scroll the scrollable arrangements (to bottom/top) using a block

Is there a way to scroll the the scrollable arrangements using blocks?  If a scrollable vertical arrangement contains a label that fills its parent, as new lines of text are added to the label, they can be off-screen and it would be nice to scroll to the bottom automatically.

Thanks if you know of a way...

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maybe it'll help you with some idea....

It is in Spanish http://kio4.com/appinventor/2UU_VerticalScrollArrangement_VisorDeLista.htm

p2uu_verticalscrollarrangement.aia

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If all you want to scroll is the text in the label,

you can use the trick in this Gallery sample:

ai2.appinventor.mit.edu/?galleryId=5769381581946880

The label seems to scroll under the control of the dragged ball in

the thin canvas at its right, but behind the scenes the label.Text 

is having its front removed using a segment() block.

Estimate how many bytes can be displayed in your label, and use that number

for your initial drag simulation setting.

Scrollable_label.aia

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Here is a very crude example of using a label (lbPump) to move a set of labels up and down inside a normal vertical arrangement. You would need to adjust the lbPump and label values to suit your requirements

scrollbuttonslabel.aia

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