Obsessive collecting -any tips to manage this please?

[oneforward20back]

Any one got any advice for how to deal with obsessive collecting (and often hiding the things)? He also prefers to collect toys rather then to play with them

Ds has OCD traits, ASD traits, sensory issues and recently discovered attachment and associated seperation anxiety. Have no diagnosis for anything

Normal for these types problems? if I should deal with this how do I deal with it?

Have posted this on SN board also so appoligies if you get this twidce.