Vる+には=in order to

dictionary-form + には: "In order to ～". に marks a purpose, and は marks a topic. The nominalizer の is not necessary in this case. And here も is replacing は for emphasis.

    注文するにはここをクリック
    Click here to order

(from:https://japanese.stackexchange.com/questions/51751/%E3%81%AB%E3%82%82-after-the-%E9%80%A3%E4%BD%93%E5%BD%A2-of-a-verb-and-sentence)