To filter the function listing on the Function Library page, you can click on the Add Filter link identified below:
After clicking on the Add Filter link, the following popup window will appear:
Select the checkbox next to each type of filter you would like to apply on the functions listing and then provide the value for that type of filter and click on Apply button. The functions listing will get filtered down based on the filter selection. An example of an applied filter is shown below:
To remove the effect of only one filter, click the x right next to the filter such as the one shown above. To remove all filters together, you can click the Reset button.