I'm suggesting that 'eselect' could have '-i, --interactive' like an option which makes users can just type
'#eselect -i kernel'
and then, look what is set now, and asked
'>>> Which one do you want to set? [1/2/N]:'
and answer that to set a newer kernel or other eselect modules.
This can reduce current 'eselect kernel list', 'eselect kernel set 2' combos to just one 'eselect -i kernel'.
Reproducible: Didn't try
Steps to Reproduce:
1.#eselect kernel list
2.#eselect kernel set 2
1.#eselect -i kernel
2.check what's set now, and what number to set
3.answer followed question with #1 command. (like '2')
4.change kernel to '2'(second) one.
Now, we already have 'update' option but it selects automatically. IMHO, We can change that option to interactively update, but it can confuse Gentoo users, so how about adding an interactive option or 'manual-update'.