To add to custom library you need to enter the library section in the application. The library section can be found in the company menu by clicking the name icon in the top right corner. Here you will find a dropdown where you can click on your company to find the libraries.
Once in the libraries you will be able to choose what kind of component you would like to add. E.g. adding a casing, press casing. Here you will find two tables. The first table is your company specific library the second the Oliasoft library. To add a new custom casing press the + sign in the top left corner of customs casings to add a new row to the table. Fill inn your casing properties and save.
Note: You can select which libraries you would like to display in the application by choosing from the drop down menu.