functionality of plugin

Hello. Sorry for my English, but I’ll try to explain what i mean. In my opinion your plugin is the best of free, but there are some questions and suggestions . In my opinion, a plugin for stores with a limited range and a small amount of attributes. I can not sufficiently studied the functionality and wrong? My wishes and questions:
1. The ability to select the type of filter categories like multi drop menu. This is useful when a large number of categories and subcategories.
2.possibility fix the selected value in the filter window. For example: type horizontal filter values before selection “Colour- quality- dimension,” type of filter values ​​after selecting “43-white- high”
3. could not find the filter reset button
4.can l use a series of filters to produce a result? scheme: Filter1 +filter2 + filter3 = result.
For example: I created 3 filters:
1.filter 1- city , location – header
2.filter2 -category, location- sidebar
3.filter3 -attributes ,location- content
The attributes in the filter 3 displays only those items that are in this category, the rest hidden attribute filters.

For example:
If you select the category “shoes” in the filter 3 shows only the “size” “color” and the other,
If you select the category “TV” in the filter 3 shows only TVs attributes, such as “screen size”.

Thank you for your work and your answers