Yes, you can have them appearing on another page, but you have to write them out separately. Here is an example:
Text item=sRGB1 label="RGB1" icon="light"{
Switch item=sRGB1 label="RGB1 switch" icon="light"
Slider item=dRGB1 label="RGB1 dimmer [%d %%]" icon="slider" sendFrequency=500
Colorpicker item=cRGB1 label="RGB1 colour"
}
Main page:
Sub-page: