ethereum/mist

I have successfully accessed my wallet contract through the MyCrypto.com desktop app

From the Contracts tab select the existing contract Mist’s Multisig contract from the dropdown list.
Use your Wallet Contract address in the Contract Address field.

Then hit the Access button – down the bottom are the access options.
I used the keystore file from the Ethereum account that the wallet contract was created.
Note: Accessing via keystore is not secure but I was ok to as I was emptying the contract wallet and no intention to ever use it again.

Select the EXECUTE action from the drop down list

Sending ETH from the wallet contract
_TO field the ETH address you are sending to
_VALUE field the amount of ETH to send in the WEI denomination
_data field set to 0x
VALUE field set to 0
Recommend manually setting the Gas Limit to 100000 to avoid Out of Gas TX errors.

Sending token from the wallet contract
"_to" field use the address of the token contract. You can find those on Etherscan.
Set the "_value" field to 0.
In the "_data" field, use <inputdata>.
Set the "Value" field to 0.
Recommend manually setting the Gas Limit to 100000 to avoid Out of Gas TX errors.

<inputdata> you will need MyCrypto support to assist as this is a derived string using the send to address, token, number of tokens …which ends up looking like
0xa9059cbb00000000000000000000000045ce28cb166d0c5e05093c7a11315cedeedbcd6400000000000000000000000000000000000000000000003860e639d806400000

Best of luck all!