[6] In 1942, with the support of the Social Democratic Municipal Commissioner, Oscar Larsson, Olenius was able to take over a room in the civic hall Medborgarhuset, where Ingmar Bergman had previously directed plays for both children and adults.

Children between the ages of seven and sixteen could try pantomime theatre and improvisation to music, as a continuation and expansion of the storytelling sessions.

She encouraged children to actively experience the roles, stating, "But most important of all is that thought and empathy are given enough time.

She also published several collections of plays to be performed by children, with the aim of promoting their personalities and development.

[2] She was also on the jury of the Rabén & Sjögren screenplay competition, where Astrid Lindgren's first book The Confidences of Britt-Mari won second prize.