Rendering a specific set of frames in one job I want to render every 2nd(or even) frame and every 5th frame that end in '5' is it possible to do that in one render job.....not very good at scripting but will take any advice I can get
It's possible loop over a list of the desired frames, set the correct frame and render it within a Python script.

I didn't manage to automatically enumerate frames according to the Blender Output Panel documentation, so I set the filename manually for each frame and restore the original value afterwards.

The following script should render all even frames as well as all frames that end in a five.

import bpy

scene = bpy.context.scene
tmp_filename = scene.render.filepath

all_frames = range(scene.frame_start, scene.frame_end + 1)

for f in [f for f in all_frames if f%2 == 0 or f%10 == 5]:
    scene.frame_set(f)
    scene.render.filepath = '//frame_{:04d}'.format(f)  # frame_0000 etc.
    bpy.ops.render.render(write_still=True)

scene.render.filepath = tmp_filename


You can select the desired frames by list comprehension like above or use Python's filter function.

The “render with script” approach will make Blender unresponsive during the job, but I think the operating system won't shut the process down unless you tell it to do so, i.e. click on the “Blender is not responding” dialog box.