Like Classic pools, Elastic Pools should also have the feature where the user can enter with one of the asset from the pair and Kyber does the rest of the transactions, while the user only has to sign once to allow Kyber to do those transactions in background.
I know the calculations for Elastic pools can be very complicated compared to the classic pools as the weight of assets differ very much depending on the range concentration. But this feature would be good and very useful, many users are new to V3/Elastic Pools, so this complex weight of the assets confuse them even more. So, joining with a single asset on a pair would be great to encourage more use of Elastic Pools.
And Kyber would be the first one to integrate this as no one else have the Zap feature for V3/ElasticPools. Others do have it for V2/ClassicPools though but not for the former ones.