Hiding Filter Dropdown

creativemind1

I'm using this table http://datatables.net/examples/api/multi_filter_select.html for my work. I've few questions with regards to that,

1) From the above table, I want to use all columns however I only want to show the dropdown filter of column1 and column2.
2) My all columns are displaying according to alphabetic order. I don't want like that but in the way how I have written the tables.
3) Is there any way I can display different starting texts for both the dropdown filters. Like for one, Day and Month, instead of [Please Select]
var column = api.column( i );
var select = $('<select class=""><option value="">[Please Select]</option></select>')

4) How to display the initial table (when a person loads the page) in the way I wish?