Soler was speaking alongside technical secretary Robert Fernandez at a news conference to mark the conclusion of a transfer window where the LaLiga champions were busy both in terms of new arrivals and securing key performers.
Neymar, Sergio Busquets and Javier Mascherano all penned extended deals at Camp Nou and Soler is keen to build on this work.
Along with designs on fresh terms for midfielder Ivan Rakitic, Barca are eager to tie the remaining parts of their stellar attacking triumvirate down.