Mantain units menu on screen

[jepessen]

Hi to all, I'm new to this forum.

I've just buy an HP prime, and I came from a HP50.
I use a lot unit conversions, but in HP prime it's a bit more annoying than in HP50.
When I want to introduce a value with units, i.e. 9m, I press

9 [Units]->Length->m

When I insert m (or whatever other unit) the menu disappears, and I must to reopen it if I want to introduce another unit value.
So, if I want to convert meters to yards, I must open the menu three times (one for first value, one for second value and one for invoking the convert command). The same thing if I want to add two values and so on.
I have the same behavior for both RPN mode (that I use) and algebraic mode.
Is there a way to maintain the Units menu open until I want to disable it in an explicit way?