A method of providing input to an electronic unit comprising a touch-sensitive surface that is configured for registering application of touch by a flexible unit, wherein the method comprises the following steps: - to provide a structure configured from a material that cannot be registered by the touch-sensitive surface, and which structure has a top side and a bottom side having an area that is smaller than the area of the touch-sensitive surface, and wherein the area of the bottom side is delimited by an outer periphery on the structure, and wherein the structure comprises, either at the periphery or within the periphery, at least two marked positions, which positions are configured for deployment of flexible units; - to deploy the structure on the touch-sensitive surface; - to deploy two or more flexible units comprising material that can be registered by the touch-sensitive surface in the at least two marked positions ∘ such that the two or more flexible units extend(s) past the top side of the structure and to the bottom side of the structure, to the effect that the registration of a flexible unit is conditioned by the configuration of the at least one marked position; and ∘ such that the touch-sensitive surface is capable of registering the position of the two or more flexible units - to move the two or more flexible units across along the touch-sensitive surface, whereby the structure follows the movement across along the touch-sensitive surface; - to recognize the registered specific pattern; - to register the movement of the specific pattern. - to provide a structure configured from a material that cannot be registered by the touch-sensitive surface, and which structure has a top side and a bottom side having an area that is smaller than the area of the touch-sensitive surface, and wherein the area of the bottom side is delimited by an outer periphery on the structure, and wherein the structure comprises, either at the periphery or within the periphery, at least two marked positions, which positions are configured for deployment of flexible units; - to deploy the structure on the touch-sensitive surface; - to deploy two or more flexible units comprising material that can be registered by the touch-sensitive surface in the at least two marked positions ∘ such that the two or more flexible units extend(s) past the top side of the structure and to the bottom side of the structure, to the effect that the registration of a flexible unit is conditioned by the configuration of the at least one marked position; and ∘ such that the touch-sensitive surface is capable of registering the position of the two or more flexible units ∘ such that the two or more flexible units extend(s) past the top side of the structure and to the bottom side of the structure, to the effect that the registration of a flexible unit is conditioned by the configuration of the at least one marked position; and ∘ such that the touch-sensitive surface is capable of registering the position of the two or more flexible units - to move the two or more flexible units across along the touch-sensitive surface, whereby the structure follows the movement across along the touch-sensitive surface; - to recognize the registered specific pattern; - to register the movement of the specific pattern.