In Vimperator how to configure the number of lines of proposal when using the command ":history" ?

Question

I'm using Vimperator.

I'd like to configure the number of lines that are display by Vimperator ,as proposals, when I'm looking up in history with the command

:history 

for the moment my page is completely covered with proposals.

in my vimperatorrc i configured

previewheight=20 

in order to have 20 propositions when I'm using completion on the command line but this is working with open completion not with :history.

My Question:

how can i set the numbers of lines I'd like to have displayed as proposals when I type the command ?

:history 

thank you for your help.

Answer 1

Use the -max flag, for example:

:history -max=20