Does dolphindb have a development plan to support embedded list as a column in a table?

is there any development plan by dolphindb to support embedded list as a column in a table ? we need something like the followings: 1. We quickly calculate the cumulative ask/bid qty according to the orderbook and save it to a column .  2. According to the provided qty , we can quickly figure out the corresponding price position on the orderbook and the distance from the price to mid .   A simple example, as shown, in this example only 5 levels in the ask volume, in practice, we have 64-128 profile price and volume.  

av1 av2 av3 av4 av5 cav
1 2 3 4 5 [1,3,6,10,15]