Those functions are Initialize Array and then Delete From Array.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions Unofficial Forum Rules and Guidelines "Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5
The icon of the second function narrows down the functionality provided but does not define it. When I look at the icon it is either Delete From Array or Array Subset. For some reason I tell them apart by the extra output terminal of the Delete From Array which is the deleted portion, not massively intuitive but it has stuck in my mind and I'm happy to run with it. The length and index input terminals of Delete from Array and Array Subset are also opposite to each other, but that is too annoying to use as an aide memoire.
Download the snippet first and then drag it onto your block diagram. The snippet was generated with LabVIEW 2014, so you will need 2014 or newer to use the snippet.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions Unofficial Forum Rules and Guidelines "Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5