I'm using the monthly calendar widget from Appointments+,

I'm using the monthly calendar widget from Appointments+, but it only uses half the space of the widget space. Is there an possibility to let the calendar in the widget use the width of the widget? And if so, where do I specify this? And the widget only shows one month. There are no next and previous month buttons. If an client wishes to make an appointment in the future, he doesn't see an other month and might think that it's not possible to make an appointment for a later month. Is there a possibility to link the client to the "make an appointment" page via the widget without having to click a day?