As Ble central, how can I change scan window

[alexe100]

Hi
I have a peripheral device advertising usign 10 seconds advertising interval. With that ADV interval my C tinyB central device can not connect to it (but it can if adv interval is 3 seconds or less)

One option in order to be possible to connect to peripheral device advertising at 10 seconds interval could be tunning the ble central device scan window. When using tinyb central device how can we change scan window?