You have to do it in two steps. Click on holding and edit the shares and assign them to one strategy, then do it again for the remainder of the shares. We’ll add some text to make you aware of this. Thanks!
“Live Book” is a bit redundant now. An Account does the same with an allocation of Strategies. However we will make it available soon (next week?) since we intend to improve the functionality of Books in the future ( ex dynamic allocation ) . That complexity does not belong under the “invest” section. Thanks