I am totally new to Affinity, prev used Photoshop, which since the Catalina upgrade no longer works, and was equally new to stretching astrophotos until recently, but in PS this entailed using the 3 tabs under the histogram to bring out the detail. In Affinity there seem to be only 2 equivalent adjustments (or so it seems to me), the black level and the white level. Therefore is it possible in Affinity to stretch the histogram? By stretching see the first part of this You Tube video if that is allowed here.
