[Plugin: More Field]

I am having some trouble using this plugin. Simple elements no issue but I want to add it bit in advance which is beyond my knowledge as I have just started to learn php so no idea what to do..

Expert frnz please help me to do this. will really appreciate..

I am developing one theme for my work and here on my site there would be many moderator who will post blogs and news.

Here I want to add
1. Select Field on Page and Post for category selection so anyone can select category to display post from them for that field.

2. Input field where user will input category name or ID and post will display accordingly (same as 1st point but instead of selection list author will enter category name or id by themselves.).

3. How to use check box so author can display or hide some html elements or image or div etc.(e.g check-box to hide/show 1 row etc.).

I want to know how and which code I should add into my template file and so on.. 🙁

I went to plugin author site but no support and no help file.. 🙁

Thanks in advance.