add plugin to theme with with custom fields

Hello!

I have a slider plugin in my theme, but would like to be able have different sliders show up on different pages.

Currently the code that is in my theme is <?php masterslider(3); ?>. This code pulls up my main slider. on the other pages I would like to be able to decided what slider I want showing, which would mean changing the number within the code.

I thought a good way to do this would be adding a custom field option to each page that would populate the number in the current code. However I don’t think i have the code right since I am not very fluent in php.

<?php masterslider( the_field(‘slider’)); ?>

I would appreciate any help!

Thank you!